136168537475 has 24 divisors (see below), whose sum is σ = 174870379008. Its totient is φ = 105115354400.

The previous prime is 136168537429. The next prime is 136168537501. The reversal of 136168537475 is 574735861631.

It is a happy number.

It is not a de Polignac number, because 136168537475 - 2¹⁴ = 136168521091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136168537475.

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, 732689 + ... + 899538.

It is an arithmetic number, because the mean of its divisors is an integer number (7286265792).

Almost surely, 2^136168537475 is an apocalyptic number.

136168537475 is a deficient number, since it is larger than the sum of its proper divisors (38701841533).

136168537475 is a wasteful number, since it uses less digits than its factorization.

136168537475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632355 (or 1632350 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 136168537475 in words is "one hundred thirty-six billion, one hundred sixty-eight million, five hundred thirty-seven thousand, four hundred seventy-five".