136705651420 has 72 divisors (see below), whose sum is σ = 321583469760. Its totient is φ = 48735348480.

The previous prime is 136705651393. The next prime is 136705651441. The reversal of 136705651420 is 24156507631.

It is a congruent number.

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, 599316 + ... + 795355.

It is an arithmetic number, because the mean of its divisors is an integer number (4466437080).

Almost surely, 2^136705651420 is an apocalyptic number.

136705651420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136705651420 is an abundant number, since it is smaller than the sum of its proper divisors (184877818340).

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

136705651420 is a wasteful number, since it uses less digits than its factorization.

136705651420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394735 (or 1394720 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 136705651420 in words is "one hundred thirty-six billion, seven hundred five million, six hundred fifty-one thousand, four hundred twenty".