16655622076900 has 81 divisors (see below), whose sum is σ = 37006674105513. Its totient is φ = 6506627181600.

The previous prime is 16655622076859. The next prime is 16655622076949. The reversal of 16655622076900 is 967022655661.

The square root of 16655622076900 is 4081130.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5996023947684 + 10659598129216 = 2448678^2 + 3264904^2 .

It is a super-2 number, since 2×16655622076900² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1754881155 + ... + 1754890645.

Almost surely, 2^{16655622076900} is an apocalyptic number.

16655622076900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16655622076900 is the 4081130-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16655622076900

16655622076900 is an abundant number, since it is smaller than the sum of its proper divisors (20351052028613).

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

16655622076900 is an frugal number, since it uses more digits than its factorization.

16655622076900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19082 (or 9541 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 16655622076900 in words is "sixteen trillion, six hundred fifty-five billion, six hundred twenty-two million, seventy-six thousand, nine hundred".