623644561416 has 32 divisors (see below), whose sum is σ = 1559988894240. Its totient is φ = 207764521728.

The previous prime is 623644561343. The next prime is 623644561447. The reversal of 623644561416 is 614165446326.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7268886 + ... + 7354181.

It is an arithmetic number, because the mean of its divisors is an integer number (48749652945).

Almost surely, 2^623644561416 is an apocalyptic number.

It is an amenable number.

623644561416 is an abundant number, since it is smaller than the sum of its proper divisors (936344332824).

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

623644561416 is a wasteful number, since it uses less digits than its factorization.

623644561416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14624853 (or 14624849 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The spelling of 623644561416 in words is "six hundred twenty-three billion, six hundred forty-four million, five hundred sixty-one thousand, four hundred sixteen".