105555515115 has 32 divisors (see below), whose sum is σ = 169390932480. Its totient is φ = 56129158656.

The previous prime is 105555515101. The next prime is 105555515147. The reversal of 105555515115 is 511515555501.

It is not a de Polignac number, because 105555515115 - 2¹⁷ = 105555384043 is a prime.

It is a super-2 number, since 2×105555515115² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7313376 + ... + 7327794.

It is an arithmetic number, because the mean of its divisors is an integer number (5293466640).

Almost surely, 2^105555515115 is an apocalyptic number.

105555515115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105555515115 is a deficient number, since it is larger than the sum of its proper divisors (63835417365).

105555515115 is a wasteful number, since it uses less digits than its factorization.

105555515115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843.

The product of its (nonzero) digits is 78125, while the sum is 39.

The spelling of 105555515115 in words is "one hundred five billion, five hundred fifty-five million, five hundred fifteen thousand, one hundred fifteen".