653045165666 has 8 divisors (see below), whose sum is σ = 1011166708224. Its totient is φ = 315989596260.

The previous prime is 653045165639. The next prime is 653045165699. The reversal of 653045165666 is 666561540356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5266493210 + ... + 5266493333.

It is an arithmetic number, because the mean of its divisors is an integer number (126395838528).

Almost surely, 2^653045165666 is an apocalyptic number.

653045165666 is a deficient number, since it is larger than the sum of its proper divisors (358121542558).

653045165666 is a wasteful number, since it uses less digits than its factorization.

653045165666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532986576.

The product of its (nonzero) digits is 11664000, while the sum is 53.

The spelling of 653045165666 in words is "six hundred fifty-three billion, forty-five million, one hundred sixty-five thousand, six hundred sixty-six".