21163332294 has 32 divisors (see below), whose sum is σ = 50647292640. Its totient is φ = 6511794336.

The previous prime is 21163332293. The next prime is 21163332301. The reversal of 21163332294 is 49223336112.

21163332294 is a `hidden beast` number, since 2 + 11 + 633 + 3 + 2 + 2 + 9 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21163332293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15072897 + ... + 15074300.

It is an arithmetic number, because the mean of its divisors is an integer number (1582727895).

Almost surely, 2^21163332294 is an apocalyptic number.

21163332294 is an abundant number, since it is smaller than the sum of its proper divisors (29483960346).

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

21163332294 is a wasteful number, since it uses less digits than its factorization.

21163332294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30147221 (or 30147215 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The spelling of 21163332294 in words is "twenty-one billion, one hundred sixty-three million, three hundred thirty-two thousand, two hundred ninety-four".