666125756262 has 32 divisors (see below), whose sum is σ = 1480338219360. Its totient is φ = 222033104640.

The previous prime is 666125756249. The next prime is 666125756293. The reversal of 666125756262 is 262657521666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 666125756199 and 666125756208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207098 + ... + 1670130.

It is an arithmetic number, because the mean of its divisors is an integer number (46260569355).

Almost surely, 2^666125756262 is an apocalyptic number.

666125756262 is an abundant number, since it is smaller than the sum of its proper divisors (814212463098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666125756262 is a wasteful number, since it uses less digits than its factorization.

666125756262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489685 (or 489679 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 666125756262 in words is "six hundred sixty-six billion, one hundred twenty-five million, seven hundred fifty-six thousand, two hundred sixty-two".