126664242535051 has 6 divisors (see below), whose sum is σ = 137157138366540. Its totient is φ = 116920839262968.

The previous prime is 126664242535021. The next prime is 126664242535057. The reversal of 126664242535051 is 150535242466621.

It is not a de Polignac number, because 126664242535051 - 2⁷ = 126664242534923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126664242535051.

It is not an unprimeable number, because it can be changed into a prime (126664242535057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374746279521 + ... + 374746279858.

It is an arithmetic number, because the mean of its divisors is an integer number (22859523061090).

Almost surely, 2^{126664242535051} is an apocalyptic number.

126664242535051 is a deficient number, since it is larger than the sum of its proper divisors (10492895831489).

126664242535051 is an equidigital number, since it uses as much as digits as its factorization.

126664242535051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749492559405 (or 749492559392 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 126664242535051 in words is "one hundred twenty-six trillion, six hundred sixty-four billion, two hundred forty-two million, five hundred thirty-five thousand, fifty-one".