136662487808 has 432 divisors, whose sum is σ = 363803220480. Its totient is φ = 50047303680.

The previous prime is 136662487799. The next prime is 136662487837. The reversal of 136662487808 is 808784266631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334137908 + ... + 334138316.

Almost surely, 2^136662487808 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 136662487808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181901610240).

136662487808 is an abundant number, since it is smaller than the sum of its proper divisors (227140732672).

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

136662487808 is a wasteful number, since it uses less digits than its factorization.

136662487808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 136662487808 in words is "one hundred thirty-six billion, six hundred sixty-two million, four hundred eighty-seven thousand, eight hundred eight".