136405385204 has 12 divisors (see below), whose sum is σ = 260410280928. Its totient is φ = 62002447800.

The previous prime is 136405385201. The next prime is 136405385261. The reversal of 136405385204 is 402583504631.

136405385204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136405385204² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136405385201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550061152 + ... + 1550061239.

It is an arithmetic number, because the mean of its divisors is an integer number (21700856744).

Almost surely, 2^136405385204 is an apocalyptic number.

It is an amenable number.

136405385204 is a deficient number, since it is larger than the sum of its proper divisors (124004895724).

136405385204 is a wasteful number, since it uses less digits than its factorization.

136405385204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100122406 (or 3100122404 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 136405385204 its reverse (402583504631), we get a palindrome (538988889835).

The spelling of 136405385204 in words is "one hundred thirty-six billion, four hundred five million, three hundred eighty-five thousand, two hundred four".