253311262664 has 8 divisors (see below), whose sum is σ = 474958617510. Its totient is φ = 126655631328.

The previous prime is 253311262637. The next prime is 253311262669. The reversal of 253311262664 is 466262113352.

It can be written as a sum of positive squares in only one way, i.e., 232364489764 + 20946772900 = 482042^2 + 144730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (253311262669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15831953909 + ... + 15831953924.

Almost surely, 2^253311262664 is an apocalyptic number.

It is an amenable number.

253311262664 is a deficient number, since it is larger than the sum of its proper divisors (221647354846).

253311262664 is a wasteful number, since it uses less digits than its factorization.

253311262664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31663907839 (or 31663907835 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The spelling of 253311262664 in words is "two hundred fifty-three billion, three hundred eleven million, two hundred sixty-two thousand, six hundred sixty-four".