126801185701 has 16 divisors (see below), whose sum is σ = 132540266880. Its totient is φ = 121187102400.

The previous prime is 126801185683. The next prime is 126801185711. The reversal of 126801185701 is 107581108621.

It is a cyclic number.

It is not a de Polignac number, because 126801185701 - 2²⁵ = 126767631269 is a prime.

It is a super-2 number, since 2×126801185701² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126801185711) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2817760 + ... + 2862406.

It is an arithmetic number, because the mean of its divisors is an integer number (8283766680).

Almost surely, 2^126801185701 is an apocalyptic number.

It is an amenable number.

126801185701 is a deficient number, since it is larger than the sum of its proper divisors (5739081179).

126801185701 is a wasteful number, since it uses less digits than its factorization.

126801185701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46044.

The product of its (nonzero) digits is 26880, while the sum is 40.

The spelling of 126801185701 in words is "one hundred twenty-six billion, eight hundred one million, one hundred eighty-five thousand, seven hundred one".