2641663666900 has 72 divisors (see below), whose sum is σ = 5750664920000. Its totient is φ = 1053304922880.

The previous prime is 2641663666879. The next prime is 2641663666931. The reversal of 2641663666900 is 96663661462.

It is a super-2 number, since 2×2641663666900² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49536451 + ... + 49589749.

Almost surely, 2^{2641663666900} is an apocalyptic number.

2641663666900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2641663666900 is an abundant number, since it is smaller than the sum of its proper divisors (3109001253100).

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

2641663666900 is a wasteful number, since it uses less digits than its factorization.

2641663666900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54881 (or 54874 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 55.

The spelling of 2641663666900 in words is "two trillion, six hundred forty-one billion, six hundred sixty-three million, six hundred sixty-six thousand, nine hundred".