136526423220 has 72 divisors (see below), whose sum is σ = 451778352480. Its totient is φ = 33097314240.

The previous prime is 136526423219. The next prime is 136526423233. The reversal of 136526423220 is 22324625631.

136526423220 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 2 + 6 + 423 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 34474390 + ... + 34478349.

It is an arithmetic number, because the mean of its divisors is an integer number (6274699340).

Almost surely, 2^136526423220 is an apocalyptic number.

136526423220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136526423220 is an abundant number, since it is smaller than the sum of its proper divisors (315251929260).

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

136526423220 is a wasteful number, since it uses less digits than its factorization.

136526423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68952765 (or 68952760 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 136526423220 in words is "one hundred thirty-six billion, five hundred twenty-six million, four hundred twenty-three thousand, two hundred twenty".