99955435867 has 16 divisors (see below), whose sum is σ = 115437310912. Its totient is φ = 84774574080.

The previous prime is 99955435861. The next prime is 99955435907. The reversal of 99955435867 is 76853455999.

It is not a de Polignac number, because 99955435867 - 2¹¹ = 99955433819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99955435796 and 99955435805.

It is not an unprimeable number, because it can be changed into a prime (99955435861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3825367 + ... + 3851407.

It is an arithmetic number, because the mean of its divisors is an integer number (7214831932).

Almost surely, 2^99955435867 is an apocalyptic number.

99955435867 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

99955435867 is the 182534-th hex number.

99955435867 is a deficient number, since it is larger than the sum of its proper divisors (15481875045).

99955435867 is a wasteful number, since it uses less digits than its factorization.

99955435867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31798.

The product of its digits is 367416000, while the sum is 70.

The spelling of 99955435867 in words is "ninety-nine billion, nine hundred fifty-five million, four hundred thirty-five thousand, eight hundred sixty-seven".