666029026117 has 32 divisors (see below), whose sum is σ = 840033798912. Its totient is φ = 513950621184.

The previous prime is 666029026079. The next prime is 666029026127. The reversal of 666029026117 is 711620920666.

It is not a de Polignac number, because 666029026117 - 2⁷ = 666029025989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666029026127) 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 31 ways as a sum of consecutive naturals, for example, 2523393 + ... + 2774809.

It is an arithmetic number, because the mean of its divisors is an integer number (26251056216).

Almost surely, 2^666029026117 is an apocalyptic number.

It is an amenable number.

666029026117 is a deficient number, since it is larger than the sum of its proper divisors (174004772795).

666029026117 is a wasteful number, since it uses less digits than its factorization.

666029026117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252157.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 666029026117 in words is "six hundred sixty-six billion, twenty-nine million, twenty-six thousand, one hundred seventeen".