136156741668 has 120 divisors (see below), whose sum is σ = 358580499200. Its totient is φ = 45050100480.

The previous prime is 136156741657. The next prime is 136156741703. The reversal of 136156741668 is 866147651631.

It is a happy number.

136156741668 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 567 + 4 + 16 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29850108 + ... + 29854668.

Almost surely, 2^136156741668 is an apocalyptic number.

136156741668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136156741668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179290249600).

136156741668 is an abundant number, since it is smaller than the sum of its proper divisors (222423757532).

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

136156741668 is a wasteful number, since it uses less digits than its factorization.

136156741668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239 (or 5228 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 136156741668 in words is "one hundred thirty-six billion, one hundred fifty-six million, seven hundred forty-one thousand, six hundred sixty-eight".