106666611105615 has 32 divisors (see below), whose sum is σ = 186322024313856. Its totient is φ = 51678171692160.

The previous prime is 106666611105601. The next prime is 106666611105619. The reversal of 106666611105615 is 516501116666601.

It is not a de Polignac number, because 106666611105615 - 2⁴ = 106666611105599 is a prime.

It is a super-2 number, since 2×106666611105615² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106666611105619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243362172 + ... + 243800081.

It is an arithmetic number, because the mean of its divisors is an integer number (5822563259808).

Almost surely, 2^{106666611105615} is an apocalyptic number.

106666611105615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106666611105615 is a deficient number, since it is larger than the sum of its proper divisors (79655413208241).

106666611105615 is a wasteful number, since it uses less digits than its factorization.

106666611105615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487163599.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 106666611105615 in words is "one hundred six trillion, six hundred sixty-six billion, six hundred eleven million, one hundred five thousand, six hundred fifteen".