21701376150 has 24 divisors (see below), whose sum is σ = 53819413224. Its totient is φ = 5787033600.

The previous prime is 21701376149. The next prime is 21701376157. The reversal of 21701376150 is 5167310712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21701376157) 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, 72337771 + ... + 72338070.

It is an arithmetic number, because the mean of its divisors is an integer number (2242475551).

Almost surely, 2^21701376150 is an apocalyptic number.

21701376150 is an abundant number, since it is smaller than the sum of its proper divisors (32118037074).

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

21701376150 is a wasteful number, since it uses less digits than its factorization.

21701376150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144675856 (or 144675851 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

Adding to 21701376150 its reverse (5167310712), we get a palindrome (26868686862).

The spelling of 21701376150 in words is "twenty-one billion, seven hundred one million, three hundred seventy-six thousand, one hundred fifty".