23621365663020 has 144 divisors (see below), whose sum is σ = 72203004986112. Its totient is φ = 6250550866560.

The previous prime is 23621365663019. The next prime is 23621365663139. The reversal of 23621365663020 is 2036656312632.

23621365663020 is a `hidden beast` number, since 2 + 3 + 6 + 2 + 1 + 3 + 6 + 5 + 6 + 630 + 2 + 0 = 666.

It is a super-2 number, since 2×23621365663020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 700851489 + ... + 700885191.

It is an arithmetic number, because the mean of its divisors is an integer number (501409756848).

Almost surely, 2^{23621365663020} is an apocalyptic number.

23621365663020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23621365663020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36101502493056).

23621365663020 is an abundant number, since it is smaller than the sum of its proper divisors (48581639323092).

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

23621365663020 is a wasteful number, since it uses less digits than its factorization.

23621365663020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63572 (or 63567 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The spelling of 23621365663020 in words is "twenty-three trillion, six hundred twenty-one billion, three hundred sixty-five million, six hundred sixty-three thousand, twenty".