21141544716 has 72 divisors (see below), whose sum is σ = 53968933200. Its totient is φ = 6977854080.

The previous prime is 21141544667. The next prime is 21141544717. The reversal of 21141544716 is 61744514112.

21141544716 is a `hidden beast` number, since 2 + 1 + 1 + 41 + 544 + 71 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (21141544717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1941126 + ... + 1951986.

Almost surely, 2^21141544716 is an apocalyptic number.

It is an amenable number.

21141544716 is an abundant number, since it is smaller than the sum of its proper divisors (32827388484).

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

21141544716 is a wasteful number, since it uses less digits than its factorization.

21141544716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11399 (or 11394 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The spelling of 21141544716 in words is "twenty-one billion, one hundred forty-one million, five hundred forty-four thousand, seven hundred sixteen".