136623450602 has 4 divisors (see below), whose sum is σ = 204935175906. Its totient is φ = 68311725300.

The previous prime is 136623450581. The next prime is 136623450629. The reversal of 136623450602 is 206054326631.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 134306857441 + 2316593161 = 366479^2 + 48131^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34155862649 + ... + 34155862652.

Almost surely, 2^136623450602 is an apocalyptic number.

136623450602 is a deficient number, since it is larger than the sum of its proper divisors (68311725304).

136623450602 is an equidigital number, since it uses as much as digits as its factorization.

136623450602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68311725303.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 136623450602 in words is "one hundred thirty-six billion, six hundred twenty-three million, four hundred fifty thousand, six hundred two".