20372619233990 has 32 divisors (see below), whose sum is σ = 36720536418720. Its totient is φ = 8137977421824.

The previous prime is 20372619233839. The next prime is 20372619234017. The reversal of 20372619233990 is 9933291627302.

It is a happy number.

It is a super-2 number, since 2×20372619233990² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151556549 + ... + 151690911.

It is an arithmetic number, because the mean of its divisors is an integer number (1147516763085).

Almost surely, 2^{20372619233990} is an apocalyptic number.

20372619233990 is a deficient number, since it is larger than the sum of its proper divisors (16347917184730).

20372619233990 is a wasteful number, since it uses less digits than its factorization.

20372619233990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154856.

The product of its (nonzero) digits is 6613488, while the sum is 56.

The spelling of 20372619233990 in words is "twenty trillion, three hundred seventy-two billion, six hundred nineteen million, two hundred thirty-three thousand, nine hundred ninety".