205979094153 has 16 divisors (see below), whose sum is σ = 348747672960. Its totient is φ = 117702339408.

The previous prime is 205979094143. The next prime is 205979094169. The reversal of 205979094153 is 351490979502.

205979094153 is a `hidden beast` number, since 2 + 0 + 597 + 9 + 0 + 9 + 41 + 5 + 3 = 666.

It is not a de Polignac number, because 205979094153 - 2³⁷ = 68540140681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205979094153.

It is not an unprimeable number, because it can be changed into a prime (205979094143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544918050 + ... + 544918427.

It is an arithmetic number, because the mean of its divisors is an integer number (21796729560).

Almost surely, 2^205979094153 is an apocalyptic number.

It is an amenable number.

205979094153 is a deficient number, since it is larger than the sum of its proper divisors (142768578807).

205979094153 is a wasteful number, since it uses less digits than its factorization.

205979094153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089836493 (or 1089836487 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 205979094153 in words is "two hundred five billion, nine hundred seventy-nine million, ninety-four thousand, one hundred fifty-three".