66107331830115 has 48 divisors (see below), whose sum is σ = 118798883224320. Its totient is φ = 33970917784320.

The previous prime is 66107331830107. The next prime is 66107331830117. The reversal of 66107331830115 is 51103813370166.

66107331830115 is a `hidden beast` number, since 6 + 6 + 1 + 0 + 7 + 331 + 8 + 301 + 1 + 5 = 666.

66107331830115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66107331830115 - 2³ = 66107331830107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (66107331830117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103149472 + ... + 103788381.

It is an arithmetic number, because the mean of its divisors is an integer number (2474976733840).

Almost surely, 2^{66107331830115} is an apocalyptic number.

66107331830115 is a deficient number, since it is larger than the sum of its proper divisors (52691551394205).

66107331830115 is a wasteful number, since it uses less digits than its factorization.

66107331830115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206938124 (or 206938121 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 66107331830115 in words is "sixty-six trillion, one hundred seven billion, three hundred thirty-one million, eight hundred thirty thousand, one hundred fifteen".