136631455064 has 64 divisors (see below), whose sum is σ = 279846433440. Its totient is φ = 62157542400.

The previous prime is 136631455049. The next prime is 136631455069. The reversal of 136631455064 is 460554136631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136631455069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14427659 + ... + 14437125.

Almost surely, 2^136631455064 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 136631455064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139923216720).

136631455064 is an abundant number, since it is smaller than the sum of its proper divisors (143214978376).

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

136631455064 is a wasteful number, since it uses less digits than its factorization.

136631455064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460 (or 11456 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 136631455064 in words is "one hundred thirty-six billion, six hundred thirty-one million, four hundred fifty-five thousand, sixty-four".