1623552770664 has 96 divisors (see below), whose sum is σ = 4797733019040. Its totient is φ = 491896195200.

The previous prime is 1623552770633. The next prime is 1623552770867. The reversal of 1623552770664 is 4660772553261.

1623552770664 is a `hidden beast` number, since 1 + 6 + 23 + 552 + 7 + 7 + 0 + 6 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1623552770664.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4236499 + ... + 4603805.

It is an arithmetic number, because the mean of its divisors is an integer number (49976385615).

Almost surely, 2^{1623552770664} is an apocalyptic number.

It is an amenable number.

1623552770664 is an abundant number, since it is smaller than the sum of its proper divisors (3174180248376).

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

1623552770664 is a wasteful number, since it uses less digits than its factorization.

1623552770664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372911 (or 372904 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 1623552770664 in words is "one trillion, six hundred twenty-three billion, five hundred fifty-two million, seven hundred seventy thousand, six hundred sixty-four".