16531033127664 has 160 divisors (see below), whose sum is σ = 51472587400704. Its totient is φ = 4509744701440.

The previous prime is 16531033127659. The next prime is 16531033127671. The reversal of 16531033127664 is 46672133013561.

It is a super-2 number, since 2×16531033127664² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39830349 + ... + 40243244.

Almost surely, 2^{16531033127664} is an apocalyptic number.

It is an amenable number.

16531033127664 is an abundant number, since it is smaller than the sum of its proper divisors (34941554273040).

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

16531033127664 is a wasteful number, since it uses less digits than its factorization.

16531033127664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80073655 (or 80073649 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 16531033127664 in words is "sixteen trillion, five hundred thirty-one billion, thirty-three million, one hundred twenty-seven thousand, six hundred sixty-four".