106612511515 has 4 divisors (see below), whose sum is σ = 127935013824. Its totient is φ = 85290009208.

The previous prime is 106612511503. The next prime is 106612511557. The reversal of 106612511515 is 515115216601.

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 106612511515 - 2⁵ = 106612511483 is a prime.

It is a super-2 number, since 2×106612511515² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10661251147 + ... + 10661251156.

It is an arithmetic number, because the mean of its divisors is an integer number (31983753456).

Almost surely, 2^106612511515 is an apocalyptic number.

106612511515 is a deficient number, since it is larger than the sum of its proper divisors (21322502309).

106612511515 is an equidigital number, since it uses as much as digits as its factorization.

106612511515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322502308.

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 106612511515 in words is "one hundred six billion, six hundred twelve million, five hundred eleven thousand, five hundred fifteen".