16556015747364 has 24 divisors (see below), whose sum is σ = 39285461097120. Its totient is φ = 5425135103424.

The previous prime is 16556015747347. The next prime is 16556015747377. The reversal of 16556015747364 is 46374751065561.

It is a junction number, because it is equal to n+sod(n) for n = 16556015747298 and 16556015747307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11692100809 + ... + 11692102224.

It is an arithmetic number, because the mean of its divisors is an integer number (1636894212380).

Almost surely, 2^{16556015747364} is an apocalyptic number.

It is an amenable number.

16556015747364 is an abundant number, since it is smaller than the sum of its proper divisors (22729445349756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16556015747364 is a wasteful number, since it uses less digits than its factorization.

16556015747364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23384203099 (or 23384203097 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 60.

The spelling of 16556015747364 in words is "sixteen trillion, five hundred fifty-six billion, fifteen million, seven hundred forty-seven thousand, three hundred sixty-four".