136312185064 has 48 divisors (see below), whose sum is σ = 281932977060. Its totient is φ = 61739462400.

The previous prime is 136312185047. The next prime is 136312185067. The reversal of 136312185064 is 460581213631.

It can be written as a sum of positive squares in 2 ways, for example, as 134256288100 + 2055896964 = 366410^2 + 45342^2 .

It is not an unprimeable number, because it can be changed into a prime (136312185067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21442 + ... + 522574.

Almost surely, 2^136312185064 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 136312185064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140966488530).

136312185064 is an abundant number, since it is smaller than the sum of its proper divisors (145620791996).

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

136312185064 is a wasteful number, since it uses less digits than its factorization.

136312185064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501442 (or 501427 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 136312185064 its reverse (460581213631), we get a palindrome (596893398695).

The spelling of 136312185064 in words is "one hundred thirty-six billion, three hundred twelve million, one hundred eighty-five thousand, sixty-four".