99801658 has 16 divisors (see below), whose sum is σ = 165551616. Its totient is φ = 44742240.

The previous prime is 99801631. The next prime is 99801677. The reversal of 99801658 is 85610899.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29466 + ... + 32677.

It is an arithmetic number, because the mean of its divisors is an integer number (10346976).

Almost surely, 2^99801658 is an apocalyptic number.

99801658 is a deficient number, since it is larger than the sum of its proper divisors (65749958).

99801658 is a wasteful number, since it uses less digits than its factorization.

99801658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62229.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 99801658 is about 9990.0779776736. The cubic root of 99801658 is about 463.8518062466.

The spelling of 99801658 in words is "ninety-nine million, eight hundred one thousand, six hundred fifty-eight".