253220366651 has 32 divisors (see below), whose sum is σ = 298794355200. Its totient is φ = 210115825920.

The previous prime is 253220366629. The next prime is 253220366671. The reversal of 253220366651 is 156663022352.

It is not a de Polignac number, because 253220366651 - 2¹⁰ = 253220365627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253220366599 and 253220366608.

It is not an unprimeable number, because it can be changed into a prime (253220366671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16204520 + ... + 16220138.

It is an arithmetic number, because the mean of its divisors is an integer number (9337323600).

Almost surely, 2^253220366651 is an apocalyptic number.

253220366651 is a deficient number, since it is larger than the sum of its proper divisors (45573988549).

253220366651 is a wasteful number, since it uses less digits than its factorization.

253220366651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 253220366651 in words is "two hundred fifty-three billion, two hundred twenty million, three hundred sixty-six thousand, six hundred fifty-one".