126205253330 has 32 divisors (see below), whose sum is σ = 244665099504. Its totient is φ = 46594849536.

The previous prime is 126205253281. The next prime is 126205253353. The reversal of 126205253330 is 33352502621.

It can be written as a sum of positive squares in 8 ways, for example, as 32686108849 + 93519144481 = 180793^2 + 305809^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776452 + ... + 1846128.

Almost surely, 2^126205253330 is an apocalyptic number.

126205253330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126205253330 is a deficient number, since it is larger than the sum of its proper divisors (118459846174).

126205253330 is a wasteful number, since it uses less digits than its factorization.

126205253330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83630.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 126205253330 its reverse (33352502621), we get a palindrome (159557755951).

The spelling of 126205253330 in words is "one hundred twenty-six billion, two hundred five million, two hundred fifty-three thousand, three hundred thirty".