99881553255 has 64 divisors (see below), whose sum is σ = 176854233600. Its totient is φ = 47733670400.

The previous prime is 99881553241. The next prime is 99881553301. The reversal of 99881553255 is 55235518899.

It is a happy number.

It is not a de Polignac number, because 99881553255 - 2¹³ = 99881545063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3205129 + ... + 3236141.

It is an arithmetic number, because the mean of its divisors is an integer number (2763347400).

Almost surely, 2^99881553255 is an apocalyptic number.

99881553255 is a deficient number, since it is larger than the sum of its proper divisors (76972680345).

99881553255 is a wasteful number, since it uses less digits than its factorization.

99881553255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31312.

The product of its digits is 19440000, while the sum is 60.

The spelling of 99881553255 in words is "ninety-nine billion, eight hundred eighty-one million, five hundred fifty-three thousand, two hundred fifty-five".