1623608064 has 360 divisors, whose sum is σ = 5505432240. Its totient is φ = 471785472.

The previous prime is 1623608059. The next prime is 1623608117. The reversal of 1623608064 is 4608063261.

1623608064 is a `hidden beast` number, since 162 + 360 + 80 + 64 = 666.

It is a super-2 number, since 2×1623608064² = 5272206290971656192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5121634 + ... + 5121950.

Almost surely, 2^1623608064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1623608064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2752716120).

1623608064 is an abundant number, since it is smaller than the sum of its proper divisors (3881824176).

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

1623608064 is a wasteful number, since it uses less digits than its factorization.

1623608064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1623608064 is about 40294.0202015138. The cubic root of 1623608064 is about 1175.3315651586.

The spelling of 1623608064 in words is "one billion, six hundred twenty-three million, six hundred eight thousand, sixty-four".