1013011665 has 32 divisors (see below), whose sum is σ = 1650464640. Its totient is φ = 530482176.

The previous prime is 1013011663. The next prime is 1013011687. The reversal of 1013011665 is 5661103101.

It is not a de Polignac number, because 1013011665 - 2¹ = 1013011663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013011661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182014 + ... + 187496.

It is an arithmetic number, because the mean of its divisors is an integer number (51577020).

Almost surely, 2^1013011665 is an apocalyptic number.

1013011665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1013011665 is a deficient number, since it is larger than the sum of its proper divisors (637452975).

1013011665 is a wasteful number, since it uses less digits than its factorization.

1013011665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1013011665 is about 31827.8441777008. The cubic root of 1013011665 is about 1004.3185449891.

Adding to 1013011665 its reverse (5661103101), we get a palindrome (6674114766).

The spelling of 1013011665 in words is "one billion, thirteen million, eleven thousand, six hundred sixty-five".