68660570 has 32 divisors (see below), whose sum is σ = 135224640. Its totient is φ = 24893440.

The previous prime is 68660519. The next prime is 68660573. The reversal of 68660570 is 7506686.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68660573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48026 + ... + 49434.

It is an arithmetic number, because the mean of its divisors is an integer number (4225770).

Almost surely, 2^68660570 is an apocalyptic number.

68660570 is a deficient number, since it is larger than the sum of its proper divisors (66564070).

68660570 is a wasteful number, since it uses less digits than its factorization.

68660570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 68660570 is about 8286.1673890889. The cubic root of 68660570 is about 409.4829293733.

The spelling of 68660570 in words is "sixty-eight million, six hundred sixty thousand, five hundred seventy".