136156644642 has 64 divisors (see below), whose sum is σ = 284900198400. Its totient is φ = 43347327936.

The previous prime is 136156644607. The next prime is 136156644683. The reversal of 136156644642 is 246446651631.

It is a junction number, because it is equal to n+sod(n) for n = 136156644591 and 136156644600.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1987984 + ... + 2055332.

It is an arithmetic number, because the mean of its divisors is an integer number (4451565600).

Almost surely, 2^136156644642 is an apocalyptic number.

136156644642 is an abundant number, since it is smaller than the sum of its proper divisors (148743553758).

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

136156644642 is a wasteful number, since it uses less digits than its factorization.

136156644642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67575.

The product of its digits is 2488320, while the sum is 48.

The spelling of 136156644642 in words is "one hundred thirty-six billion, one hundred fifty-six million, six hundred forty-four thousand, six hundred forty-two".