666246105 has 96 divisors (see below), whose sum is σ = 1371202560. Its totient is φ = 292930560.

The previous prime is 666246089. The next prime is 666246109. The reversal of 666246105 is 501642666.

It is a happy number.

It is not a de Polignac number, because 666246105 - 2⁴ = 666246089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666246105.

It is not an unprimeable number, because it can be changed into a prime (666246109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1019959 + ... + 1020611.

It is an arithmetic number, because the mean of its divisors is an integer number (14283360).

Almost surely, 2^666246105 is an apocalyptic number.

It is an amenable number.

666246105 is an abundant number, since it is smaller than the sum of its proper divisors (704956455).

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

666246105 is a wasteful number, since it uses less digits than its factorization.

666246105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 666246105 is about 25811.7435482379. The cubic root of 666246105 is about 873.3967288666.

The spelling of 666246105 in words is "six hundred sixty-six million, two hundred forty-six thousand, one hundred five".