66112115263 has 16 divisors (see below), whose sum is σ = 68091217920. Its totient is φ = 64163484000.

The previous prime is 66112115257. The next prime is 66112115281. The reversal of 66112115263 is 36251121166.

It is a cyclic number.

It is not a de Polignac number, because 66112115263 - 2¹³ = 66112107071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66112115243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8363613 + ... + 8371513.

It is an arithmetic number, because the mean of its divisors is an integer number (4255701120).

Almost surely, 2^66112115263 is an apocalyptic number.

66112115263 is a deficient number, since it is larger than the sum of its proper divisors (1979102657).

66112115263 is a wasteful number, since it uses less digits than its factorization.

66112115263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798.

The product of its digits is 12960, while the sum is 34.

The spelling of 66112115263 in words is "sixty-six billion, one hundred twelve million, one hundred fifteen thousand, two hundred sixty-three".