72570166 has 8 divisors (see below), whose sum is σ = 109070640. Its totient is φ = 36213288.

The previous prime is 72570143. The next prime is 72570167. The reversal of 72570166 is 66107527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72570167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34626 + ... + 36661.

It is an arithmetic number, because the mean of its divisors is an integer number (13633830).

Almost surely, 2^72570166 is an apocalyptic number.

72570166 is a deficient number, since it is larger than the sum of its proper divisors (36500474).

72570166 is a wasteful number, since it uses less digits than its factorization.

72570166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71798.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72570166 is about 8518.8124759264. The cubic root of 72570166 is about 417.1120203125.

The spelling of 72570166 in words is "seventy-two million, five hundred seventy thousand, one hundred sixty-six".