72183890224920 has 128 divisors (see below), whose sum is σ = 219672001866240. Its totient is φ = 18972044282880.

The previous prime is 72183890224903. The next prime is 72183890224949. The reversal of 72183890224920 is 2942209838127.

It is a super-2 number, since 2×72183890224920² (a number of 29 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 31 ways as a sum of consecutive naturals, for example, 9613285 + ... + 15387755.

It is an arithmetic number, because the mean of its divisors is an integer number (1716187514580).

Almost surely, 2^{72183890224920} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72183890224920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109836000933120).

72183890224920 is an abundant number, since it is smaller than the sum of its proper divisors (147488111641320).

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

72183890224920 is a wasteful number, since it uses less digits than its factorization.

72183890224920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775985 (or 5775981 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 72183890224920 in words is "seventy-two trillion, one hundred eighty-three billion, eight hundred ninety million, two hundred twenty-four thousand, nine hundred twenty".