660246057 has 12 divisors (see below), whose sum is σ = 954620160. Its totient is φ = 439734168.

The previous prime is 660246053. The next prime is 660246061. The reversal of 660246057 is 750642066.

660246057 is a `hidden beast` number, since 6 + 602 + 46 + 0 + 5 + 7 = 666.

660246057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (660246053) and next prime (660246061).

It is not a de Polignac number, because 660246057 - 2² = 660246053 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (660246053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25953 + ... + 44654.

It is an arithmetic number, because the mean of its divisors is an integer number (79551680).

Almost surely, 2^660246057 is an apocalyptic number.

It is an amenable number.

660246057 is a deficient number, since it is larger than the sum of its proper divisors (294374103).

660246057 is a wasteful number, since it uses less digits than its factorization.

660246057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71652 (or 71649 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 660246057 is about 25695.2535889413. The cubic root of 660246057 is about 870.7669534949.

The spelling of 660246057 in words is "six hundred sixty million, two hundred forty-six thousand, fifty-seven".