15065630813 has 4 divisors (see below), whose sum is σ = 15078388668. Its totient is φ = 15052872960.

The previous prime is 15065630791. The next prime is 15065630861. The reversal of 15065630813 is 31803656051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7232141764 + 7833489049 = 85042^2 + 88507^2 .

It is a cyclic number.

It is not a de Polignac number, because 15065630813 - 2¹² = 15065626717 is a prime.

It is a super-3 number, since 3×15065630813³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15065630863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6377156 + ... + 6379517.

It is an arithmetic number, because the mean of its divisors is an integer number (3769597167).

Almost surely, 2^15065630813 is an apocalyptic number.

It is an amenable number.

15065630813 is a deficient number, since it is larger than the sum of its proper divisors (12757855).

15065630813 is a wasteful number, since it uses less digits than its factorization.

15065630813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12757854.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 15065630813 in words is "fifteen billion, sixty-five million, six hundred thirty thousand, eight hundred thirteen".