126251513071701 has 16 divisors (see below), whose sum is σ = 178541071539264. Its totient is φ = 79081683954944.

The previous prime is 126251513071681. The next prime is 126251513071709. The reversal of 126251513071701 is 107170315152621.

It is a cyclic number.

It is not a de Polignac number, because 126251513071701 - 2⁷ = 126251513071573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126251513071709) 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, 2108590050 + ... + 2108649923.

It is an arithmetic number, because the mean of its divisors is an integer number (11158816971204).

Almost surely, 2^{126251513071701} is an apocalyptic number.

It is an amenable number.

126251513071701 is a deficient number, since it is larger than the sum of its proper divisors (52289558467563).

126251513071701 is a wasteful number, since it uses less digits than its factorization.

126251513071701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217240580.

The product of its (nonzero) digits is 88200, while the sum is 42.

The spelling of 126251513071701 in words is "one hundred twenty-six trillion, two hundred fifty-one billion, five hundred thirteen million, seventy-one thousand, seven hundred one".