651042455506 has 32 divisors (see below), whose sum is σ = 989692421760. Its totient is φ = 321168960000.

The previous prime is 651042455477. The next prime is 651042455507. The reversal of 651042455506 is 605554240156.

It is not an unprimeable number, because it can be changed into a prime (651042455507) 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, 146266581 + ... + 146271031.

It is an arithmetic number, because the mean of its divisors is an integer number (30927888180).

Almost surely, 2^651042455506 is an apocalyptic number.

651042455506 is a deficient number, since it is larger than the sum of its proper divisors (338649966254).

651042455506 is a wasteful number, since it uses less digits than its factorization.

651042455506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 651042455506 in words is "six hundred fifty-one billion, forty-two million, four hundred fifty-five thousand, five hundred six".