51660152802670 has 32 divisors (see below), whose sum is σ = 93233860116480. Its totient is φ = 20609489899680.

The previous prime is 51660152802667. The next prime is 51660152802679. The reversal of 51660152802670 is 7620825106615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660152802679) 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, 140266021 + ... + 140633839.

It is an arithmetic number, because the mean of its divisors is an integer number (2913558128640).

Almost surely, 2^{51660152802670} is an apocalyptic number.

51660152802670 is a deficient number, since it is larger than the sum of its proper divisors (41573707313810).

51660152802670 is a wasteful number, since it uses less digits than its factorization.

51660152802670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404880.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 51660152802670 in words is "fifty-one trillion, six hundred sixty billion, one hundred fifty-two million, eight hundred two thousand, six hundred seventy".