16555272646304 has 24 divisors (see below), whose sum is σ = 37249363454688. Its totient is φ = 7095116848320.

The previous prime is 16555272646303. The next prime is 16555272646349. The reversal of 16555272646304 is 40364627255561.

It is a super-2 number, since 2×16555272646304² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 16555272646304.

It is not an unprimeable number, because it can be changed into a prime (16555272646303) 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, 36953733362 + ... + 36953733809.

It is an arithmetic number, because the mean of its divisors is an integer number (1552056810612).

Almost surely, 2^{16555272646304} is an apocalyptic number.

16555272646304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16555272646304 is an abundant number, since it is smaller than the sum of its proper divisors (20694090808384).

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

16555272646304 is an equidigital number, since it uses as much as digits as its factorization.

16555272646304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73907467188 (or 73907467180 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 16555272646304 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, six hundred forty-six thousand, three hundred four".