666081270262 has 32 divisors (see below), whose sum is σ = 1011257563680. Its totient is φ = 329011084800.

The previous prime is 666081270137. The next prime is 666081270263. The reversal of 666081270262 is 262072180666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666081270263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229919598 + ... + 229922494.

It is an arithmetic number, because the mean of its divisors is an integer number (31601798865).

Almost surely, 2^666081270262 is an apocalyptic number.

666081270262 is a deficient number, since it is larger than the sum of its proper divisors (345176293418).

666081270262 is a wasteful number, since it uses less digits than its factorization.

666081270262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 666081270262 in words is "six hundred sixty-six billion, eighty-one million, two hundred seventy thousand, two hundred sixty-two".