21001567150 has 24 divisors (see below), whose sum is σ = 39069267264. Its totient is φ = 8399260800.

The previous prime is 21001567127. The next prime is 21001567163. The reversal of 21001567150 is 5176510012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310915 + ... + 372385.

It is an arithmetic number, because the mean of its divisors is an integer number (1627886136).

Almost surely, 2^21001567150 is an apocalyptic number.

21001567150 is a deficient number, since it is larger than the sum of its proper divisors (18067700114).

21001567150 is a wasteful number, since it uses less digits than its factorization.

21001567150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68316 (or 68311 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The spelling of 21001567150 in words is "twenty-one billion, one million, five hundred sixty-seven thousand, one hundred fifty".