21150324555102 has 48 divisors (see below), whose sum is σ = 46138679730000. Its totient is φ = 7002055331712.

The previous prime is 21150324554981. The next prime is 21150324555127. The reversal of 21150324555102 is 20155542305112.

21150324555102 is a `hidden beast` number, since 2 + 1 + 1 + 503 + 2 + 45 + 5 + 5 + 102 = 666.

It is a super-2 number, since 2×21150324555102² (a number of 27 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, 1450477 + ... + 6663672.

It is an arithmetic number, because the mean of its divisors is an integer number (961222494375).

Almost surely, 2^{21150324555102} is an apocalyptic number.

21150324555102 is an abundant number, since it is smaller than the sum of its proper divisors (24988355174898).

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

21150324555102 is a wasteful number, since it uses less digits than its factorization.

21150324555102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115145 (or 8115142 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 21150324555102 in words is "twenty-one trillion, one hundred fifty billion, three hundred twenty-four million, five hundred fifty-five thousand, one hundred two".