136666001316 has 72 divisors (see below), whose sum is σ = 365616133344. Its totient is φ = 39577474560.

The previous prime is 136666001293. The next prime is 136666001321. The reversal of 136666001316 is 613100666631.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1947570 + ... + 2016521.

It is an arithmetic number, because the mean of its divisors is an integer number (5078001852).

Almost surely, 2^136666001316 is an apocalyptic number.

It is an amenable number.

136666001316 is an abundant number, since it is smaller than the sum of its proper divisors (228950132028).

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

136666001316 is a wasteful number, since it uses less digits than its factorization.

136666001316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964141 (or 3964126 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

Adding to 136666001316 its reverse (613100666631), we get a palindrome (749766667947).

The spelling of 136666001316 in words is "one hundred thirty-six billion, six hundred sixty-six million, one thousand, three hundred sixteen".