660425044662000 has 240 divisors, whose sum is σ = 2320456792635072. Its totient is φ = 175058773516800.

The previous prime is 660425044661959. The next prime is 660425044662023. The reversal of 660425044662000 is 266440524066.

660425044662000 is a `hidden beast` number, since 6 + 6 + 0 + 42 + 504 + 46 + 62 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×660425044662000² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106845139 + ... + 112857138.

Almost surely, 2^{660425044662000} is an apocalyptic number.

660425044662000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660425044662000 is an abundant number, since it is smaller than the sum of its proper divisors (1660031747973072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660425044662000 is a wasteful number, since it uses less digits than its factorization.

660425044662000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219702473 (or 219702454 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 660425044662000 in words is "six hundred sixty trillion, four hundred twenty-five billion, forty-four million, six hundred sixty-two thousand".