136591516406 has 4 divisors (see below), whose sum is σ = 204887274612. Its totient is φ = 68295758202.

The previous prime is 136591516387. The next prime is 136591516417. The reversal of 136591516406 is 604615195631.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34147879100 + ... + 34147879103.

It is an arithmetic number, because the mean of its divisors is an integer number (51221818653).

Almost surely, 2^136591516406 is an apocalyptic number.

136591516406 is a deficient number, since it is larger than the sum of its proper divisors (68295758206).

136591516406 is an equidigital number, since it uses as much as digits as its factorization.

136591516406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68295758205.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 136591516406 in words is "one hundred thirty-six billion, five hundred ninety-one million, five hundred sixteen thousand, four hundred six".