15696235009 has 32 divisors (see below), whose sum is σ = 19750993920. Its totient is φ = 12141513792.

The previous prime is 15696234971. The next prime is 15696235013. The reversal of 15696235009 is 90053269651.

It is a cyclic number.

It is not a de Polignac number, because 15696235009 - 2¹¹ = 15696232961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15696235009.

It is not an unprimeable number, because it can be changed into a prime (15696235039) 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, 6084882 + ... + 6087460.

It is an arithmetic number, because the mean of its divisors is an integer number (617218560).

Almost surely, 2^15696235009 is an apocalyptic number.

It is an amenable number.

15696235009 is a deficient number, since it is larger than the sum of its proper divisors (4054758911).

15696235009 is a wasteful number, since it uses less digits than its factorization.

15696235009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069.

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 15696235009 in words is "fifteen billion, six hundred ninety-six million, two hundred thirty-five thousand, nine".