136615782506 has 32 divisors (see below), whose sum is σ = 246687052800. Its totient is φ = 56660914800.

The previous prime is 136615782491. The next prime is 136615782533. The reversal of 136615782506 is 605287516631.

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, 3190805 + ... + 3233336.

It is an arithmetic number, because the mean of its divisors is an integer number (7708970400).

Almost surely, 2^136615782506 is an apocalyptic number.

136615782506 is a deficient number, since it is larger than the sum of its proper divisors (110071270294).

136615782506 is an equidigital number, since it uses as much as digits as its factorization.

136615782506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424195 (or 6424181 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 136615782506 in words is "one hundred thirty-six billion, six hundred fifteen million, seven hundred eighty-two thousand, five hundred six".