136557224730408 has 128 divisors (see below), whose sum is σ = 363513389414400. Its totient is φ = 42626825455104.

The previous prime is 136557224730317. The next prime is 136557224730473. The reversal of 136557224730408 is 804037422755631.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19235841 + ... + 25360047.

It is an arithmetic number, because the mean of its divisors is an integer number (2839948354800).

Almost surely, 2^{136557224730408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136557224730408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181756694707200).

136557224730408 is an abundant number, since it is smaller than the sum of its proper divisors (226956164683992).

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

136557224730408 is a wasteful number, since it uses less digits than its factorization.

136557224730408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124799 (or 6124795 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 136557224730408 in words is "one hundred thirty-six trillion, five hundred fifty-seven billion, two hundred twenty-four million, seven hundred thirty thousand, four hundred eight".