16626424032 has 72 divisors (see below), whose sum is σ = 48380996664. Its totient is φ = 5413250304.

The previous prime is 16626424021. The next prime is 16626424051. The reversal of 16626424032 is 23042462661.

16626424032 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 642 + 4 + 0 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658903 + ... + 683670.

It is an arithmetic number, because the mean of its divisors is an integer number (671958287).

Almost surely, 2^16626424032 is an apocalyptic number.

16626424032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16626424032 is an abundant number, since it is smaller than the sum of its proper divisors (31754572632).

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

16626424032 is a wasteful number, since it uses less digits than its factorization.

16626424032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342632 (or 1342621 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 16626424032 its reverse (23042462661), we get a palindrome (39668886693).

The spelling of 16626424032 in words is "sixteen billion, six hundred twenty-six million, four hundred twenty-four thousand, thirty-two".