2660466631 has 16 divisors (see below), whose sum is σ = 2819570688. Its totient is φ = 2507349600.

The previous prime is 2660466577. The next prime is 2660466637. The reversal of 2660466631 is 1366640662.

It is a cyclic number.

It is not a de Polignac number, because 2660466631 - 2¹⁵ = 2660433863 is a prime.

It is a super-2 number, since 2×2660466631² = 14156165389328980322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660466637) 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, 134221 + ... + 152761.

It is an arithmetic number, because the mean of its divisors is an integer number (176223168).

Almost surely, 2^2660466631 is an apocalyptic number.

2660466631 is a deficient number, since it is larger than the sum of its proper divisors (159104057).

2660466631 is a wasteful number, since it uses less digits than its factorization.

2660466631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18702.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 2660466631 is about 51579.7114280412. The cubic root of 2660466631 is about 1385.6469985562.

The spelling of 2660466631 in words is "two billion, six hundred sixty million, four hundred sixty-six thousand, six hundred thirty-one".