99009000090100 has 36 divisors (see below), whose sum is σ = 215200018958764. Its totient is φ = 39538993812480.

The previous prime is 99009000090037. The next prime is 99009000090101. The reversal of 99009000090100 is 109000090099.

It can be written as a sum of positive squares in 6 ways, for example, as 56200270995856 + 42808729094244 = 7496684^2 + 6542838^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99009000090100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99009000090101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807516189 + ... + 807638788.

Almost surely, 2^{99009000090100} is an apocalyptic number.

It is an amenable number.

99009000090100 is an abundant number, since it is smaller than the sum of its proper divisors (116191018868664).

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

99009000090100 is a wasteful number, since it uses less digits than its factorization.

99009000090100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615155604 (or 1615155597 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 37.

The spelling of 99009000090100 in words is "ninety-nine trillion, nine billion, ninety thousand, one hundred".