21164225362 has 32 divisors (see below), whose sum is σ = 38206586880. Its totient is φ = 8589505680.

The previous prime is 21164225347. The next prime is 21164225413. The reversal of 21164225362 is 26352246112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699937 + ... + 729547.

It is an arithmetic number, because the mean of its divisors is an integer number (1193955840).

Almost surely, 2^21164225362 is an apocalyptic number.

21164225362 is a deficient number, since it is larger than the sum of its proper divisors (17042361518).

21164225362 is a wasteful number, since it uses less digits than its factorization.

21164225362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32326.

The product of its digits is 34560, while the sum is 34.

The spelling of 21164225362 in words is "twenty-one billion, one hundred sixty-four million, two hundred twenty-five thousand, three hundred sixty-two".