15504065747656 has 16 divisors (see below), whose sum is σ = 29562837231600. Its totient is φ = 7620642485904.

The previous prime is 15504065747633. The next prime is 15504065747719. The reversal of 15504065747656 is 65674756040551.

It is a junction number, because it is equal to n+sod(n) for n = 15504065747594 and 15504065747603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16423797990 + ... + 16423798933.

It is an arithmetic number, because the mean of its divisors is an integer number (1847677326975).

Almost surely, 2^{15504065747656} is an apocalyptic number.

It is an amenable number.

15504065747656 is a deficient number, since it is larger than the sum of its proper divisors (14058771483944).

15504065747656 is a wasteful number, since it uses less digits than its factorization.

15504065747656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847596988 (or 32847596984 counting only the distinct ones).

The product of its (nonzero) digits is 105840000, while the sum is 61.

The spelling of 15504065747656 in words is "fifteen trillion, five hundred four billion, sixty-five million, seven hundred forty-seven thousand, six hundred fifty-six".