99421156402 has 64 divisors (see below), whose sum is σ = 163687910400. Its totient is φ = 45144348480.

The previous prime is 99421156381. The next prime is 99421156421. The reversal of 99421156402 is 20465112499.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19838077 + ... + 19843087.

It is an arithmetic number, because the mean of its divisors is an integer number (2557623600).

Almost surely, 2^99421156402 is an apocalyptic number.

99421156402 is a deficient number, since it is larger than the sum of its proper divisors (64266753998).

99421156402 is a wasteful number, since it uses less digits than its factorization.

99421156402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 99421156402 in words is "ninety-nine billion, four hundred twenty-one million, one hundred fifty-six thousand, four hundred two".