21508341162 has 64 divisors (see below), whose sum is σ = 54725760000. Its totient is φ = 5586576240.

The previous prime is 21508341143. The next prime is 21508341181. The reversal of 21508341162 is 26114380512.

It is an interprime number because it is at equal distance from previous prime (21508341143) and next prime (21508341181).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 452412 + ... + 497687.

It is an arithmetic number, because the mean of its divisors is an integer number (855090000).

Almost surely, 2^21508341162 is an apocalyptic number.

21508341162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21508341162 is an abundant number, since it is smaller than the sum of its proper divisors (33217418838).

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

21508341162 is a wasteful number, since it uses less digits than its factorization.

21508341162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950136 (or 950122 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 21508341162 in words is "twenty-one billion, five hundred eight million, three hundred forty-one thousand, one hundred sixty-two".