136605265155 has 56 divisors (see below), whose sum is σ = 246293297280. Its totient is φ = 72703111680.

The previous prime is 136605265123. The next prime is 136605265183. The reversal of 136605265155 is 551562506631.

136605265155 is a `hidden beast` number, since 1 + 3 + 6 + 605 + 26 + 5 + 15 + 5 = 666.

It is not a de Polignac number, because 136605265155 - 2⁵ = 136605265123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 136605265155.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1706835 + ... + 1785075.

Almost surely, 2^136605265155 is an apocalyptic number.

136605265155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136605265155 is a deficient number, since it is larger than the sum of its proper divisors (109688032125).

136605265155 is an frugal number, since it uses more digits than its factorization.

136605265155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78743 (or 78728 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 136605265155 in words is "one hundred thirty-six billion, six hundred five million, two hundred sixty-five thousand, one hundred fifty-five".