72150866 has 16 divisors (see below), whose sum is σ = 114696000. Its totient is φ = 33944688.

The previous prime is 72150853. The next prime is 72150877. The reversal of 72150866 is 66805127.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (7168500).

Almost surely, 2^72150866 is an apocalyptic number.

72150866 is a deficient number, since it is larger than the sum of its proper divisors (42545134).

72150866 is a wasteful number, since it uses less digits than its factorization.

72150866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 72150866 is about 8494.1665865463. The cubic root of 72150866 is about 416.3071303477.

The spelling of 72150866 in words is "seventy-two million, one hundred fifty thousand, eight hundred sixty-six".