253640613356 has 48 divisors (see below), whose sum is σ = 483942881856. Its totient is φ = 115622118144.

The previous prime is 253640613353. The next prime is 253640613367. The reversal of 253640613356 is 653316046352.

It is not an unprimeable number, because it can be changed into a prime (253640613353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270370 + ... + 1456406.

It is an arithmetic number, because the mean of its divisors is an integer number (10082143372).

Almost surely, 2^253640613356 is an apocalyptic number.

253640613356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

253640613356 is a deficient number, since it is larger than the sum of its proper divisors (230302268500).

253640613356 is a wasteful number, since it uses less digits than its factorization.

253640613356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186378 (or 186376 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 253640613356 in words is "two hundred fifty-three billion, six hundred forty million, six hundred thirteen thousand, three hundred fifty-six".