500661012 has 12 divisors (see below), whose sum is σ = 1168209056. Its totient is φ = 166887000.

The previous prime is 500660981. The next prime is 500661037. The reversal of 500661012 is 210166005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×500661012² = 501322897873728288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 500661012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20860864 + ... + 20860887.

Almost surely, 2^500661012 is an apocalyptic number.

It is an amenable number.

500661012 is an abundant number, since it is smaller than the sum of its proper divisors (667548044).

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

500661012 is a wasteful number, since it uses less digits than its factorization.

500661012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41721758 (or 41721756 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 500661012 is about 22375.4555707811. The cubic root of 500661012 is about 794.0501356799.

The spelling of 500661012 in words is "five hundred million, six hundred sixty-one thousand, twelve".