205057360802 has 54 divisors (see below), whose sum is σ = 361398839697. Its totient is φ = 87007577328.

The previous prime is 205057360769. The next prime is 205057360829. The reversal of 205057360802 is 208063750502.

It can be written as a sum of positive squares in 2 ways, for example, as 168476590681 + 36580770121 = 410459^2 + 191261^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=320201.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 667939133 + ... + 667939439.

Almost surely, 2^205057360802 is an apocalyptic number.

205057360802 is a deficient number, since it is larger than the sum of its proper divisors (156341478895).

205057360802 is an frugal number, since it uses more digits than its factorization.

205057360802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 205057360802 in words is "two hundred five billion, fifty-seven million, three hundred sixty thousand, eight hundred two".