72412003170154 has 4 divisors (see below), whose sum is σ = 108618004755234. Its totient is φ = 36206001585076.

The previous prime is 72412003170119. The next prime is 72412003170161. The reversal of 72412003170154 is 45107130021427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47131973364529 + 25280029805625 = 6865273^2 + 5027925^2 .

It is a super-2 number, since 2×72412003170154² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18103000792537 + ... + 18103000792540.

Almost surely, 2^{72412003170154} is an apocalyptic number.

72412003170154 is a deficient number, since it is larger than the sum of its proper divisors (36206001585080).

72412003170154 is a wasteful number, since it uses less digits than its factorization.

72412003170154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36206001585079.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 72412003170154 in words is "seventy-two trillion, four hundred twelve billion, three million, one hundred seventy thousand, one hundred fifty-four".