126315555051 has 16 divisors (see below), whose sum is σ = 193099765248. Its totient is φ = 71948222400.

The previous prime is 126315555043. The next prime is 126315555059. The reversal of 126315555051 is 150555513621.

It is an interprime number because it is at equal distance from previous prime (126315555043) and next prime (126315555059).

It is not a de Polignac number, because 126315555051 - 2³ = 126315555043 is a prime.

It is a super-2 number, since 2×126315555051² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126315555059) 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, 9663930 + ... + 9676991.

It is an arithmetic number, because the mean of its divisors is an integer number (12068735328).

Almost surely, 2^126315555051 is an apocalyptic number.

126315555051 is a deficient number, since it is larger than the sum of its proper divisors (66784210197).

126315555051 is a wasteful number, since it uses less digits than its factorization.

126315555051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19341242.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 126315555051 in words is "one hundred twenty-six billion, three hundred fifteen million, five hundred fifty-five thousand, fifty-one".