136243446456 has 64 divisors (see below), whose sum is σ = 367513765920. Its totient is φ = 41840547840.

The previous prime is 136243446419. The next prime is 136243446473. The reversal of 136243446456 is 654644342631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256525 + ... + 581628.

Almost surely, 2^136243446456 is an apocalyptic number.

It is an amenable number.

136243446456 is an abundant number, since it is smaller than the sum of its proper divisors (231270319464).

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

136243446456 is a wasteful number, since it uses less digits than its factorization.

136243446456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838696 (or 838692 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 48.

The spelling of 136243446456 in words is "one hundred thirty-six billion, two hundred forty-three million, four hundred forty-six thousand, four hundred fifty-six".