136699533442 has 32 divisors (see below), whose sum is σ = 222465625200. Its totient is φ = 62743480320.

The previous prime is 136699533419. The next prime is 136699533461. The reversal of 136699533442 is 244335996631.

It is a Cunningham number, because it is equal to 369729²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 36198487081 + 100501046361 = 190259^2 + 317019^2 .

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, 6330528 + ... + 6352084.

Almost surely, 2^136699533442 is an apocalyptic number.

136699533442 is a deficient number, since it is larger than the sum of its proper divisors (85766091758).

136699533442 is a wasteful number, since it uses less digits than its factorization.

136699533442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26166.

The product of its digits is 12597120, while the sum is 55.

The spelling of 136699533442 in words is "one hundred thirty-six billion, six hundred ninety-nine million, five hundred thirty-three thousand, four hundred forty-two".