21436545150 has 72 divisors (see below), whose sum is σ = 57885440184. Its totient is φ = 5687371200.

The previous prime is 21436545149. The next prime is 21436545191. The reversal of 21436545150 is 5154563412.

21436545150 is a `hidden beast` number, since 2 + 143 + 65 + 451 + 5 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32256 + ... + 209555.

It is an arithmetic number, because the mean of its divisors is an integer number (803964447).

Almost surely, 2^21436545150 is an apocalyptic number.

21436545150 is an abundant number, since it is smaller than the sum of its proper divisors (36448895034).

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

21436545150 is a wasteful number, since it uses less digits than its factorization.

21436545150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242026 (or 242018 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 21436545150 in words is "twenty-one billion, four hundred thirty-six million, five hundred forty-five thousand, one hundred fifty".