21200564150 has 24 divisors (see below), whose sum is σ = 39436970664. Its totient is φ = 8479382400.

The previous prime is 21200564141. The next prime is 21200564159. The reversal of 21200564150 is 5146500212.

It is an interprime number because it is at equal distance from previous prime (21200564141) and next prime (21200564159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200564159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815249 + ... + 840851.

It is an arithmetic number, because the mean of its divisors is an integer number (1643207111).

Almost surely, 2^21200564150 is an apocalyptic number.

21200564150 is a deficient number, since it is larger than the sum of its proper divisors (18236406514).

21200564150 is a wasteful number, since it uses less digits than its factorization.

21200564150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42176 (or 42171 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 21200564150 in words is "twenty-one billion, two hundred million, five hundred sixty-four thousand, one hundred fifty".