2661031630008 has 96 divisors (see below), whose sum is σ = 7582274022960. Its totient is φ = 841987560960.

The previous prime is 2661031629953. The next prime is 2661031630009. The reversal of 2661031630008 is 8000361301662.

2661031630008 is a `hidden beast` number, since 2 + 6 + 6 + 10 + 3 + 1 + 630 + 0 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661031630009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12072310 + ... + 12290757.

Almost surely, 2^{2661031630008} is an apocalyptic number.

It is an amenable number.

2661031630008 is an abundant number, since it is smaller than the sum of its proper divisors (4921242392952).

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

2661031630008 is a wasteful number, since it uses less digits than its factorization.

2661031630008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24363157 (or 24363150 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 2661031630008 in words is "two trillion, six hundred sixty-one billion, thirty-one million, six hundred thirty thousand, eight".