99545622390 has 24 divisors (see below), whose sum is σ = 258818618448. Its totient is φ = 26545499280.

The previous prime is 99545622373. The next prime is 99545622391. The reversal of 99545622390 is 9322654599.

It is a happy number.

99545622390 is a `hidden beast` number, since 9 + 9 + 5 + 4 + 5 + 622 + 3 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99545622391) 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, 553031146 + ... + 553031325.

It is an arithmetic number, because the mean of its divisors is an integer number (10784109102).

Almost surely, 2^99545622390 is an apocalyptic number.

99545622390 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99545622390 is an abundant number, since it is smaller than the sum of its proper divisors (159272996058).

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

99545622390 is a wasteful number, since it uses less digits than its factorization.

99545622390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106062484 (or 1106062481 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 99545622390 in words is "ninety-nine billion, five hundred forty-five million, six hundred twenty-two thousand, three hundred ninety".