1611070220 has 12 divisors (see below), whose sum is σ = 3383247504. Its totient is φ = 644428080.

The previous prime is 1611070199. The next prime is 1611070231. The reversal of 1611070220 is 220701161.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 80553511 = 1611070220 / (1 + 6 + 1 + 1 + 0 + 7 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1611070192 and 1611070201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40276736 + ... + 40276775.

It is an arithmetic number, because the mean of its divisors is an integer number (281937292).

Almost surely, 2^1611070220 is an apocalyptic number.

1611070220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1611070220 is an abundant number, since it is smaller than the sum of its proper divisors (1772177284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611070220 is a wasteful number, since it uses less digits than its factorization.

1611070220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80553520 (or 80553518 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1611070220 is about 40138.1392194506. The cubic root of 1611070220 is about 1172.2983579182.

Adding to 1611070220 its reverse (220701161), we get a palindrome (1831771381).

The spelling of 1611070220 in words is "one billion, six hundred eleven million, seventy thousand, two hundred twenty".