660402662 has 16 divisors (see below), whose sum is σ = 1018265472. Its totient is φ = 321036480.

The previous prime is 660402629. The next prime is 660402671. The reversal of 660402662 is 266204066.

It is a super-2 number, since 2×660402662² = 872263351953372488, which contains 22 as substring.

It is a congruent 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, 10283 + ... + 37769.

It is an arithmetic number, because the mean of its divisors is an integer number (63641592).

Almost surely, 2^660402662 is an apocalyptic number.

660402662 is a deficient number, since it is larger than the sum of its proper divisors (357862810).

660402662 is a wasteful number, since it uses less digits than its factorization.

660402662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 660402662 is about 25698.3007609453. The cubic root of 660402662 is about 870.8357943343.

The spelling of 660402662 in words is "six hundred sixty million, four hundred two thousand, six hundred sixty-two".