16437291264 has 81 divisors (see below), whose sum is σ = 47410513059. Its totient is φ = 5477045760.

The previous prime is 16437291223. The next prime is 16437291271. The reversal of 16437291264 is 46219273461.

The square root of 16437291264 is 128208.

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

16437291264 is a `hidden beast` number, since 16 + 4 + 372 + 9 + 1 + 264 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6152649 + ... + 6155319.

Almost surely, 2^16437291264 is an apocalyptic number.

16437291264 is the 128208-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16437291264

16437291264 is an abundant number, since it is smaller than the sum of its proper divisors (30973221795).

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

16437291264 is an frugal number, since it uses more digits than its factorization.

16437291264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364 (or 2676 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 16437291264 in words is "sixteen billion, four hundred thirty-seven million, two hundred ninety-one thousand, two hundred sixty-four".