253309116666788 has 24 divisors (see below), whose sum is σ = 545588866667712. Its totient is φ = 100210199999904.

The previous prime is 253309116666787. The next prime is 253309116666833. The reversal of 253309116666788 is 887666611903352.

It is not an unprimeable number, because it can be changed into a prime (253309116666787) 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, 347952082970 + ... + 347952083697.

It is an arithmetic number, because the mean of its divisors is an integer number (22732869444488).

Almost surely, 2^{253309116666788} is an apocalyptic number.

253309116666788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253309116666788 is an abundant number, since it is smaller than the sum of its proper divisors (292279750000924).

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

253309116666788 is a wasteful number, since it uses less digits than its factorization.

253309116666788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695904166691 (or 695904166689 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 71.

The spelling of 253309116666788 in words is "two hundred fifty-three trillion, three hundred nine billion, one hundred sixteen million, six hundred sixty-six thousand, seven hundred eighty-eight".