126668040254 has 64 divisors (see below), whose sum is σ = 236588774400. Its totient is φ = 50718175200.

The previous prime is 126668040217. The next prime is 126668040269. The reversal of 126668040254 is 452040866621.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585104 + ... + 771804.

It is an arithmetic number, because the mean of its divisors is an integer number (3696699600).

Almost surely, 2^126668040254 is an apocalyptic number.

126668040254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

126668040254 is a deficient number, since it is larger than the sum of its proper divisors (109920734146).

126668040254 is a wasteful number, since it uses less digits than its factorization.

126668040254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186790 (or 186776 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 126668040254 in words is "one hundred twenty-six billion, six hundred sixty-eight million, forty thousand, two hundred fifty-four".