253666180663 has 8 divisors (see below), whose sum is σ = 306957395232. Its totient is φ = 204638263296.

The previous prime is 253666180661. The next prime is 253666180681. The reversal of 253666180663 is 366081666352.

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

It is a cyclic number.

It is not a de Polignac number, because 253666180663 - 2¹ = 253666180661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253666180663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253666180661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065824170 + ... + 1065824407.

It is an arithmetic number, because the mean of its divisors is an integer number (38369674404).

Almost surely, 2^253666180663 is an apocalyptic number.

253666180663 is a deficient number, since it is larger than the sum of its proper divisors (53291214569).

253666180663 is a wasteful number, since it uses less digits than its factorization.

253666180663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131648601.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 253666180663 in words is "two hundred fifty-three billion, six hundred sixty-six million, one hundred eighty thousand, six hundred sixty-three".