66113186392 has 128 divisors (see below), whose sum is σ = 146574489600. Its totient is φ = 27657907200.

The previous prime is 66113186387. The next prime is 66113186393. The reversal of 66113186392 is 29368131166.

66113186392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66113186393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5294268 + ... + 5306740.

It is an arithmetic number, because the mean of its divisors is an integer number (1145113200).

Almost surely, 2^66113186392 is an apocalyptic number.

66113186392 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66113186392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73287244800).

66113186392 is an abundant number, since it is smaller than the sum of its proper divisors (80461303208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66113186392 is a wasteful number, since it uses less digits than its factorization.

66113186392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12617 (or 12613 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The spelling of 66113186392 in words is "sixty-six billion, one hundred thirteen million, one hundred eighty-six thousand, three hundred ninety-two".