72385164555 has 32 divisors (see below), whose sum is σ = 127525840128. Its totient is φ = 34767830400.

The previous prime is 72385164547. The next prime is 72385164559. The reversal of 72385164555 is 55546158327.

It is not a de Polignac number, because 72385164555 - 2³ = 72385164547 is a prime.

It is a super-2 number, since 2×72385164555² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72385164498 and 72385164507.

It is not an unprimeable number, because it can be changed into a prime (72385164559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032336 + ... + 2067645.

It is an arithmetic number, because the mean of its divisors is an integer number (3985182504).

Almost surely, 2^72385164555 is an apocalyptic number.

72385164555 is a deficient number, since it is larger than the sum of its proper divisors (55140675573).

72385164555 is a wasteful number, since it uses less digits than its factorization.

72385164555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100107.

The product of its digits is 5040000, while the sum is 51.

The spelling of 72385164555 in words is "seventy-two billion, three hundred eighty-five million, one hundred sixty-four thousand, five hundred fifty-five".