72182090064 has 60 divisors (see below), whose sum is σ = 213123568544. Its totient is φ = 20622047232.

The previous prime is 72182090017. The next prime is 72182090093. The reversal of 72182090064 is 46009028127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4917424 + ... + 4932080.

Almost surely, 2^72182090064 is an apocalyptic number.

It is an amenable number.

72182090064 is an abundant number, since it is smaller than the sum of its proper divisors (140941478480).

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

72182090064 is an frugal number, since it uses more digits than its factorization.

72182090064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29332 (or 14669 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 72182090064 in words is "seventy-two billion, one hundred eighty-two million, ninety thousand, sixty-four".