136401643088 has 20 divisors (see below), whose sum is σ = 279823959540. Its totient is φ = 64189008384.

The previous prime is 136401643069. The next prime is 136401643097. The reversal of 136401643088 is 880346104631.

It can be written as a sum of positive squares in 2 ways, for example, as 41678039104 + 94723603984 = 204152^2 + 307772^2 .

It is a super-2 number, since 2×136401643088² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250738043 + ... + 250738586.

It is an arithmetic number, because the mean of its divisors is an integer number (13991197977).

Almost surely, 2^136401643088 is an apocalyptic number.

It is an amenable number.

136401643088 is an abundant number, since it is smaller than the sum of its proper divisors (143422316452).

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

136401643088 is a wasteful number, since it uses less digits than its factorization.

136401643088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501476654 (or 501476648 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 136401643088 in words is "one hundred thirty-six billion, four hundred one million, six hundred forty-three thousand, eighty-eight".