16231626720 has 192 divisors, whose sum is σ = 58020157440. Its totient is φ = 4236286464.

The previous prime is 16231626689. The next prime is 16231626737. The reversal of 16231626720 is 2762613261.

16231626720 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 1 + 626 + 7 + 20 = 666.

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 31 ways as a sum of consecutive naturals, for example, 163069 + ... + 243011.

It is an arithmetic number, because the mean of its divisors is an integer number (302188320).

Almost surely, 2^16231626720 is an apocalyptic number.

16231626720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16231626720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29010078720).

16231626720 is an abundant number, since it is smaller than the sum of its proper divisors (41788530720).

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

16231626720 is a wasteful number, since it uses less digits than its factorization.

16231626720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80014 (or 80000 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 16231626720 in words is "sixteen billion, two hundred thirty-one million, six hundred twenty-six thousand, seven hundred twenty".