253695818103 has 48 divisors (see below), whose sum is σ = 436809346560. Its totient is φ = 127999377792.

The previous prime is 253695818099. The next prime is 253695818147. The reversal of 253695818103 is 301818596352.

It is a happy number.

It is not a de Polignac number, because 253695818103 - 2² = 253695818099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253695818153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1472368 + ... + 1635621.

It is an arithmetic number, because the mean of its divisors is an integer number (9100194720).

Almost surely, 2^253695818103 is an apocalyptic number.

253695818103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

253695818103 is a deficient number, since it is larger than the sum of its proper divisors (183113528457).

253695818103 is a wasteful number, since it uses less digits than its factorization.

253695818103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108048 (or 3108035 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 253695818103 in words is "two hundred fifty-three billion, six hundred ninety-five million, eight hundred eighteen thousand, one hundred three".