66141136124 has 24 divisors (see below), whose sum is σ = 132318492768. Its totient is φ = 28338439680.

The previous prime is 66141136123. The next prime is 66141136261. The reversal of 66141136124 is 42163114166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66141136123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218717 + ... + 424404.

It is an arithmetic number, because the mean of its divisors is an integer number (5513270532).

Almost surely, 2^66141136124 is an apocalyptic number.

It is an amenable number.

66141136124 is an abundant number, since it is smaller than the sum of its proper divisors (66177356644).

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

66141136124 is a wasteful number, since it uses less digits than its factorization.

66141136124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646805 (or 646803 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The spelling of 66141136124 in words is "sixty-six billion, one hundred forty-one million, one hundred thirty-six thousand, one hundred twenty-four".