136140020244 has 48 divisors (see below), whose sum is σ = 354510542400. Its totient is φ = 45180086688.

The previous prime is 136140020189. The next prime is 136140020251. The reversal of 136140020244 is 442020041631.

It is a happy number.

136140020244 is a `hidden beast` number, since 1 + 3 + 614 + 0 + 0 + 2 + 0 + 2 + 44 = 666.

It is a super-2 number, since 2×136140020244² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2752039 + ... + 2801070.

It is an arithmetic number, because the mean of its divisors is an integer number (7385636300).

Almost surely, 2^136140020244 is an apocalyptic number.

It is an amenable number.

136140020244 is an abundant number, since it is smaller than the sum of its proper divisors (218370522156).

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

136140020244 is a wasteful number, since it uses less digits than its factorization.

136140020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553349 (or 5553341 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 136140020244 its reverse (442020041631), we get a palindrome (578160061875).

The spelling of 136140020244 in words is "one hundred thirty-six billion, one hundred forty million, twenty thousand, two hundred forty-four".