660272074 has 48 divisors (see below), whose sum is σ = 1270773504. Its totient is φ = 251745120.

The previous prime is 660272071. The next prime is 660272083. The reversal of 660272074 is 470272066.

It is a super-3 number, since 3×660272074³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (660272071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75472 + ... + 83764.

It is an arithmetic number, because the mean of its divisors is an integer number (26474448).

Almost surely, 2^660272074 is an apocalyptic number.

660272074 is a deficient number, since it is larger than the sum of its proper divisors (610501430).

660272074 is a wasteful number, since it uses less digits than its factorization.

660272074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8371 (or 8360 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 660272074 is about 25695.7598447682. The cubic root of 660272074 is about 870.7783908704.

The spelling of 660272074 in words is "six hundred sixty million, two hundred seventy-two thousand, seventy-four".