136456947536 has 120 divisors (see below), whose sum is σ = 342629710920. Its totient is φ = 52121373696.

The previous prime is 136456947433. The next prime is 136456947541. The reversal of 136456947536 is 635749654631.

It can be written as a sum of positive squares in 4 ways, for example, as 3450857536 + 133006090000 = 58744^2 + 364700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64730 + ... + 526406.

It is an arithmetic number, because the mean of its divisors is an integer number (2855247591).

Almost surely, 2^136456947536 is an apocalyptic number.

136456947536 is a gapful number since it is divisible by the number (16) 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 136456947536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171314855460).

136456947536 is an abundant number, since it is smaller than the sum of its proper divisors (206172763384).

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

136456947536 is a wasteful number, since it uses less digits than its factorization.

136456947536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461741 (or 461728 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 59.

The spelling of 136456947536 in words is "one hundred thirty-six billion, four hundred fifty-six million, nine hundred forty-seven thousand, five hundred thirty-six".