66034363231 has 4 divisors (see below), whose sum is σ = 66272754712. Its totient is φ = 65795971752.

The previous prime is 66034363201. The next prime is 66034363243. The reversal of 66034363231 is 13236343066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66034363231 is a prime.

It is a super-2 number, since 2×66034363231² (a number of 22 digits) contains 22 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 (66034363201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119195325 + ... + 119195878.

It is an arithmetic number, because the mean of its divisors is an integer number (16568188678).

Almost surely, 2^66034363231 is an apocalyptic number.

66034363231 is a deficient number, since it is larger than the sum of its proper divisors (238391481).

66034363231 is a wasteful number, since it uses less digits than its factorization.

66034363231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238391480.

The product of its (nonzero) digits is 139968, while the sum is 37.

The spelling of 66034363231 in words is "sixty-six billion, thirty-four million, three hundred sixty-three thousand, two hundred thirty-one".