1613457660 has 96 divisors (see below), whose sum is σ = 4614382080. Its totient is φ = 421111552.

The previous prime is 1613457623. The next prime is 1613457673. The reversal of 1613457660 is 667543161.

It is a super-2 number, since 2×1613457660² = 5206491241225351200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930154 + ... + 931886.

It is an arithmetic number, because the mean of its divisors is an integer number (48066480).

Almost surely, 2^1613457660 is an apocalyptic number.

1613457660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613457660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307191040).

1613457660 is an abundant number, since it is smaller than the sum of its proper divisors (3000924420).

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

1613457660 is a wasteful number, since it uses less digits than its factorization.

1613457660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1613457660 is about 40167.8685020751. The cubic root of 1613457660 is about 1172.8771472196.

The spelling of 1613457660 in words is "one billion, six hundred thirteen million, four hundred fifty-seven thousand, six hundred sixty".