99074638506 has 16 divisors (see below), whose sum is σ = 201887943264. Its totient is φ = 32401768464.

The previous prime is 99074638459. The next prime is 99074638549. The reversal of 99074638506 is 60583647099.

It is a happy number.

It is a super-5 number, since 5×99074638506⁵ (a number of 56 digits) contains 55555 as substring.

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, 155777416 + ... + 155778051.

It is an arithmetic number, because the mean of its divisors is an integer number (12617996454).

Almost surely, 2^99074638506 is an apocalyptic number.

99074638506 is an abundant number, since it is smaller than the sum of its proper divisors (102813304758).

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

99074638506 is a wasteful number, since it uses less digits than its factorization.

99074638506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311555525.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 99074638506 in words is "ninety-nine billion, seventy-four million, six hundred thirty-eight thousand, five hundred six".