20331200072499 has 16 divisors (see below), whose sum is σ = 27988388696064. Its totient is φ = 13114249344000.

The previous prime is 20331200072483. The next prime is 20331200072551. The reversal of 20331200072499 is 99427000213302.

It is not a de Polignac number, because 20331200072499 - 2⁴ = 20331200072483 is a prime.

It is a super-2 number, since 2×20331200072499² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20331200072499.

It is not an unprimeable number, because it can be changed into a prime (20331200072299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21653902 + ... + 22573299.

It is an arithmetic number, because the mean of its divisors is an integer number (1749274293504).

Almost surely, 2^{20331200072499} is an apocalyptic number.

20331200072499 is a deficient number, since it is larger than the sum of its proper divisors (7657188623565).

20331200072499 is a wasteful number, since it uses less digits than its factorization.

20331200072499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44232178.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 20331200072499 in words is "twenty trillion, three hundred thirty-one billion, two hundred million, seventy-two thousand, four hundred ninety-nine".