105556005499 has 4 divisors (see below), whose sum is σ = 120635434864. Its totient is φ = 90476576136.

The previous prime is 105556005493. The next prime is 105556005557. The reversal of 105556005499 is 994500655501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105556005499 - 2³ = 105556005491 is a prime.

It is a super-2 number, since 2×105556005499² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105556005491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7539714672 + ... + 7539714685.

It is an arithmetic number, because the mean of its divisors is an integer number (30158858716).

Almost surely, 2^105556005499 is an apocalyptic number.

105556005499 is a deficient number, since it is larger than the sum of its proper divisors (15079429365).

105556005499 is an equidigital number, since it uses as much as digits as its factorization.

105556005499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15079429364.

The product of its (nonzero) digits is 1215000, while the sum is 49.

The spelling of 105556005499 in words is "one hundred five billion, five hundred fifty-six million, five thousand, four hundred ninety-nine".