136399496940 has 192 divisors, whose sum is σ = 513504230400. Its totient is φ = 29343071232.

The previous prime is 136399496921. The next prime is 136399497001. The reversal of 136399496940 is 49694993631.

136399496940 is a `hidden beast` number, since 13 + 6 + 3 + 99 + 496 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 997050 + ... + 1125569.

It is an arithmetic number, because the mean of its divisors is an integer number (2674501200).

Almost surely, 2^136399496940 is an apocalyptic number.

136399496940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136399496940 is an abundant number, since it is smaller than the sum of its proper divisors (377104733460).

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

136399496940 is a wasteful number, since it uses less digits than its factorization.

136399496940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122661 (or 2122653 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 63.

The spelling of 136399496940 in words is "one hundred thirty-six billion, three hundred ninety-nine million, four hundred ninety-six thousand, nine hundred forty".