136581770402 has 48 divisors (see below), whose sum is σ = 257431352640. Its totient is φ = 53199067680.

The previous prime is 136581770357. The next prime is 136581770443. The reversal of 136581770402 is 204077185631.

It is a super-2 number, since 2×136581770402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7778549 + ... + 7796087.

It is an arithmetic number, because the mean of its divisors is an integer number (5363153180).

Almost surely, 2^136581770402 is an apocalyptic number.

136581770402 is a deficient number, since it is larger than the sum of its proper divisors (120849582238).

136581770402 is a wasteful number, since it uses less digits than its factorization.

136581770402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22167 (or 22156 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 136581770402 in words is "one hundred thirty-six billion, five hundred eighty-one million, seven hundred seventy thousand, four hundred two".