16064638800 has 120 divisors (see below), whose sum is σ = 58811908416. Its totient is φ = 3671915520.

The previous prime is 16064638787. The next prime is 16064638817. The reversal of 16064638800 is 883646061.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 947829 + ... + 964628.

Almost surely, 2^16064638800 is an apocalyptic number.

16064638800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16064638800 is an abundant number, since it is smaller than the sum of its proper divisors (42747269616).

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

16064638800 is a wasteful number, since it uses less digits than its factorization.

16064638800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912485 (or 1912474 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 16064638800 in words is "sixteen billion, sixty-four million, six hundred thirty-eight thousand, eight hundred".