21614533020 has 96 divisors (see below), whose sum is σ = 67696776000. Its totient is φ = 5725170432.

The previous prime is 21614533009. The next prime is 21614533033. The reversal of 21614533020 is 2033541612.

21614533020 is a `hidden beast` number, since 2 + 161 + 453 + 30 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53859 + ... + 214778.

It is an arithmetic number, because the mean of its divisors is an integer number (705174750).

Almost surely, 2^21614533020 is an apocalyptic number.

21614533020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21614533020 is an abundant number, since it is smaller than the sum of its proper divisors (46082242980).

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

21614533020 is a wasteful number, since it uses less digits than its factorization.

21614533020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268804 (or 268796 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 21614533020 in words is "twenty-one billion, six hundred fourteen million, five hundred thirty-three thousand, twenty".