660678050 has 24 divisors (see below), whose sum is σ = 1240801536. Its totient is φ = 261703440.

The previous prime is 660678041. The next prime is 660678071. The reversal of 660678050 is 50876066.

It is a junction number, because it is equal to n+sod(n) for n = 660677995 and 660678013.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58994 + ... + 69293.

It is an arithmetic number, because the mean of its divisors is an integer number (51700064).

Almost surely, 2^660678050 is an apocalyptic number.

660678050 is a deficient number, since it is larger than the sum of its proper divisors (580123486).

660678050 is a wasteful number, since it uses less digits than its factorization.

660678050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128402 (or 128397 counting only the distinct ones).

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

The square root of 660678050 is about 25703.6582999386. The cubic root of 660678050 is about 870.9568237278.

The spelling of 660678050 in words is "six hundred sixty million, six hundred seventy-eight thousand, fifty".