126761666590 has 16 divisors (see below), whose sum is σ = 245722615488. Its totient is φ = 46804307616.

The previous prime is 126761666573. The next prime is 126761666617. The reversal of 126761666590 is 95666167621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487544742 + ... + 487545001.

It is an arithmetic number, because the mean of its divisors is an integer number (15357663468).

Almost surely, 2^126761666590 is an apocalyptic number.

126761666590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126761666590 is a deficient number, since it is larger than the sum of its proper divisors (118960948898).

126761666590 is a wasteful number, since it uses less digits than its factorization.

126761666590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975089763.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 126761666590 in words is "one hundred twenty-six billion, seven hundred sixty-one million, six hundred sixty-six thousand, five hundred ninety".