16624742612 has 24 divisors (see below), whose sum is σ = 31109679720. Its totient is φ = 7745945600.

The previous prime is 16624742599. The next prime is 16624742633. The reversal of 16624742612 is 21624742661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7545701956 + 9079040656 = 86866^2 + 95284^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16624742612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203437 + ... + 1217172.

It is an arithmetic number, because the mean of its divisors is an integer number (1296236655).

Almost surely, 2^16624742612 is an apocalyptic number.

It is an amenable number.

16624742612 is a deficient number, since it is larger than the sum of its proper divisors (14484937108).

16624742612 is a wasteful number, since it uses less digits than its factorization.

16624742612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420731 (or 2420729 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The spelling of 16624742612 in words is "sixteen billion, six hundred twenty-four million, seven hundred forty-two thousand, six hundred twelve".