206118173013475 has 12 divisors (see below), whose sum is σ = 255586713700744. Its totient is φ = 164894422821120.

The previous prime is 206118173013461. The next prime is 206118173013491. The reversal of 206118173013475 is 574310371811602.

It is not a de Polignac number, because 206118173013475 - 2⁴⁷ = 65380684658147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62501107 + ... + 65716243.

Almost surely, 2^{206118173013475} is an apocalyptic number.

206118173013475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206118173013475 is a deficient number, since it is larger than the sum of its proper divisors (49468540687269).

206118173013475 is a wasteful number, since it uses less digits than its factorization.

206118173013475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779494 (or 5779489 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 206118173013475 in words is "two hundred six trillion, one hundred eighteen billion, one hundred seventy-three million, thirteen thousand, four hundred seventy-five".