205032313551 has 16 divisors (see below), whose sum is σ = 294521834880. Its totient is φ = 126123819360.

The previous prime is 205032313537. The next prime is 205032313573. The reversal of 205032313551 is 155313230502.

It is not a de Polignac number, because 205032313551 - 2¹⁴ = 205032297167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205032313531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939861 + ... + 1137278.

It is an arithmetic number, because the mean of its divisors is an integer number (18407614680).

Almost surely, 2^205032313551 is an apocalyptic number.

205032313551 is a deficient number, since it is larger than the sum of its proper divisors (89489521329).

205032313551 is a wasteful number, since it uses less digits than its factorization.

205032313551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079686.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 205032313551 in words is "two hundred five billion, thirty-two million, three hundred thirteen thousand, five hundred fifty-one".