15680268015685 has 32 divisors (see below), whose sum is σ = 24520817325312. Its totient is φ = 9341263733760.

The previous prime is 15680268015679. The next prime is 15680268015743. The reversal of 15680268015685 is 58651086208651.

It is not a de Polignac number, because 15680268015685 - 2⁵ = 15680268015653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1013584251 + ... + 1013599720.

It is an arithmetic number, because the mean of its divisors is an integer number (766275541416).

Almost surely, 2^{15680268015685} is an apocalyptic number.

It is an amenable number.

15680268015685 is a deficient number, since it is larger than the sum of its proper divisors (8840549309627).

15680268015685 is a wasteful number, since it uses less digits than its factorization.

15680268015685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027184013.

The product of its (nonzero) digits is 27648000, while the sum is 61.

The spelling of 15680268015685 in words is "fifteen trillion, six hundred eighty billion, two hundred sixty-eight million, fifteen thousand, six hundred eighty-five".