16236805720 has 16 divisors (see below), whose sum is σ = 36532812960. Its totient is φ = 6494722272.

The previous prime is 16236805709. The next prime is 16236805727. The reversal of 16236805720 is 2750863261.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 405920143 = 16236805720 / (1 + 6 + 2 + 3 + 6 + 8 + 0 + 5 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16236805727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202960032 + ... + 202960111.

It is an arithmetic number, because the mean of its divisors is an integer number (2283300810).

Almost surely, 2^16236805720 is an apocalyptic number.

16236805720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16236805720 is an abundant number, since it is smaller than the sum of its proper divisors (20296007240).

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

16236805720 is a wasteful number, since it uses less digits than its factorization.

16236805720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405920154 (or 405920150 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 16236805720 in words is "sixteen billion, two hundred thirty-six million, eight hundred five thousand, seven hundred twenty".