16931776550976 has 315 divisors, whose sum is σ = 56633343795951. Its totient is φ = 4836267862272.

The previous prime is 16931776550917. The next prime is 16931776550993. The reversal of 16931776550976 is 67905567713961.

It is a happy number.

The square root of 16931776550976 is 4114824.

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

16931776550976 is a `hidden beast` number, since 1 + 69 + 3 + 1 + 7 + 7 + 6 + 550 + 9 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4839031275 + ... + 4839034773.

Almost surely, 2^{16931776550976} is an apocalyptic number.

16931776550976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

16931776550976 is the 4114824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16931776550976

16931776550976 is an abundant number, since it is smaller than the sum of its proper divisors (39701567244975).

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

16931776550976 is an frugal number, since it uses more digits than its factorization.

16931776550976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044 (or 3511 counting only the distinct ones).

The product of its (nonzero) digits is 450084600, while the sum is 72.

The spelling of 16931776550976 in words is "sixteen trillion, nine hundred thirty-one billion, seven hundred seventy-six million, five hundred fifty thousand, nine hundred seventy-six".