66112253471 has 16 divisors (see below), whose sum is σ = 73617724800. Its totient is φ = 58863573600.

The previous prime is 66112253401. The next prime is 66112253483. The reversal of 66112253471 is 17435221166.

It is a cyclic number.

It is not a de Polignac number, because 66112253471 - 2³⁰ = 65038511647 is a prime.

It is a super-3 number, since 3×66112253471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66112253401) 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, 14765 + ... + 363926.

It is an arithmetic number, because the mean of its divisors is an integer number (4601107800).

Almost surely, 2^66112253471 is an apocalyptic number.

66112253471 is a deficient number, since it is larger than the sum of its proper divisors (7505471329).

66112253471 is a wasteful number, since it uses less digits than its factorization.

66112253471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379030.

The product of its digits is 60480, while the sum is 38.

The spelling of 66112253471 in words is "sixty-six billion, one hundred twelve million, two hundred fifty-three thousand, four hundred seventy-one".