66546183792 has 80 divisors (see below), whose sum is σ = 187639240320. Its totient is φ = 20154758400.

The previous prime is 66546183791. The next prime is 66546183793. The reversal of 66546183792 is 29738164566.

It is an interprime number because it is at equal distance from previous prime (66546183791) and next prime (66546183793).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66546183791) 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, 986934 + ... + 1052202.

It is an arithmetic number, because the mean of its divisors is an integer number (2345490504).

Almost surely, 2^66546183792 is an apocalyptic number.

It is an amenable number.

66546183792 is an abundant number, since it is smaller than the sum of its proper divisors (121093056528).

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

66546183792 is a wasteful number, since it uses less digits than its factorization.

66546183792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67222 (or 67216 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 66546183792 in words is "sixty-six billion, five hundred forty-six million, one hundred eighty-three thousand, seven hundred ninety-two".