72402553466 has 16 divisors (see below), whose sum is σ = 110393423208. Its totient is φ = 35604844800.

The previous prime is 72402553441. The next prime is 72402553513. The reversal of 72402553466 is 66435520427.

It can be written as a sum of positive squares in 4 ways, for example, as 50492337025 + 21910216441 = 224705^2 + 148021^2 .

It is a super-2 number, since 2×72402553466² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479286 + ... + 2508318.

Almost surely, 2^72402553466 is an apocalyptic number.

72402553466 is a deficient number, since it is larger than the sum of its proper divisors (37990869742).

72402553466 is a wasteful number, since it uses less digits than its factorization.

72402553466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49537.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 72402553466 in words is "seventy-two billion, four hundred two million, five hundred fifty-three thousand, four hundred sixty-six".