136680705870656 has 28 divisors (see below), whose sum is σ = 271275351580800. Its totient is φ = 68327861377920.

The previous prime is 136680705870649. The next prime is 136680705870689. The reversal of 136680705870656 is 656078507086631.

It is a hoax number, since the sum of its digits (68) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194827706 + ... + 195527993.

It is an arithmetic number, because the mean of its divisors is an integer number (9688405413600).

Almost surely, 2^{136680705870656} is an apocalyptic number.

136680705870656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136680705870656 is a deficient number, since it is larger than the sum of its proper divisors (134594645710144).

136680705870656 is an equidigital number, since it uses as much as digits as its factorization.

136680705870656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390361182 (or 390361172 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 68.

The spelling of 136680705870656 in words is "one hundred thirty-six trillion, six hundred eighty billion, seven hundred five million, eight hundred seventy thousand, six hundred fifty-six".