205136794298 has 16 divisors (see below), whose sum is σ = 318329537760. Its totient is φ = 99027255600.

The previous prime is 205136794297. The next prime is 205136794319. The reversal of 205136794298 is 892497631502.

It is a super-2 number, since 2×205136794298² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205136794297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573553 + ... + 1698923.

It is an arithmetic number, because the mean of its divisors is an integer number (19895596110).

It is a 2-persistent number, because it is pandigital, and so is 2⋅205136794298 = 410273588596, but 3⋅205136794298 = 615410382894 is not.

Almost surely, 2^205136794298 is an apocalyptic number.

205136794298 is a deficient number, since it is larger than the sum of its proper divisors (113192743462).

205136794298 is a wasteful number, since it uses less digits than its factorization.

205136794298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153613.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 205136794298 in words is "two hundred five billion, one hundred thirty-six million, seven hundred ninety-four thousand, two hundred ninety-eight".