205201089597 has 48 divisors (see below), whose sum is σ = 325352251392. Its totient is φ = 112575990240.

The previous prime is 205201089553. The next prime is 205201089601. The reversal of 205201089597 is 795980102502.

It is not a de Polignac number, because 205201089597 - 2¹² = 205201085501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205201089547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10490208 + ... + 10509750.

It is an arithmetic number, because the mean of its divisors is an integer number (6778171904).

Almost surely, 2^205201089597 is an apocalyptic number.

It is an amenable number.

205201089597 is a deficient number, since it is larger than the sum of its proper divisors (120151161795).

205201089597 is a wasteful number, since it uses less digits than its factorization.

205201089597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19838 (or 19711 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 205201089597 in words is "two hundred five billion, two hundred one million, eighty-nine thousand, five hundred ninety-seven".