21350652150 has 48 divisors (see below), whose sum is σ = 53739935424. Its totient is φ = 5608526880.

The previous prime is 21350652131. The next prime is 21350652229. The reversal of 21350652150 is 5125605312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1052172 + ... + 1072271.

It is an arithmetic number, because the mean of its divisors is an integer number (1119581988).

Almost surely, 2^21350652150 is an apocalyptic number.

21350652150 is an abundant number, since it is smaller than the sum of its proper divisors (32389283274).

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

21350652150 is a wasteful number, since it uses less digits than its factorization.

21350652150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124525 (or 2124520 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 21350652150 in words is "twenty-one billion, three hundred fifty million, six hundred fifty-two thousand, one hundred fifty".