21623605540100 has 72 divisors (see below), whose sum is σ = 46962905015040. Its totient is φ = 8642130779520.

The previous prime is 21623605540051. The next prime is 21623605540169. The reversal of 21623605540100 is 104550632612.

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, 665755661 + ... + 665788139.

Almost surely, 2^{21623605540100} is an apocalyptic number.

21623605540100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21623605540100 is an abundant number, since it is smaller than the sum of its proper divisors (25339299474940).

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

21623605540100 is a wasteful number, since it uses less digits than its factorization.

21623605540100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37917 (or 37910 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 21623605540100 in words is "twenty-one trillion, six hundred twenty-three billion, six hundred five million, five hundred forty thousand, one hundred".