16564741512 has 32 divisors (see below), whose sum is σ = 45176568480. Its totient is φ = 5019618560.

The previous prime is 16564741489. The next prime is 16564741553. The reversal of 16564741512 is 21514746561.

It is a super-2 number, since 2×16564741512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31372353 + ... + 31372880.

It is an arithmetic number, because the mean of its divisors is an integer number (1411767765).

Almost surely, 2^16564741512 is an apocalyptic number.

16564741512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16564741512 is an abundant number, since it is smaller than the sum of its proper divisors (28611826968).

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

16564741512 is a wasteful number, since it uses less digits than its factorization.

16564741512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62745253 (or 62745249 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The spelling of 16564741512 in words is "sixteen billion, five hundred sixty-four million, seven hundred forty-one thousand, five hundred twelve".