253615660342 has 32 divisors (see below), whose sum is σ = 433568829600. Its totient is φ = 110202624000.

The previous prime is 253615660339. The next prime is 253615660351. The reversal of 253615660342 is 243066516352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903467 + ... + 2032342.

It is an arithmetic number, because the mean of its divisors is an integer number (13549025925).

Almost surely, 2^253615660342 is an apocalyptic number.

253615660342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253615660342 is a deficient number, since it is larger than the sum of its proper divisors (179953169258).

253615660342 is a wasteful number, since it uses less digits than its factorization.

253615660342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935952.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 253615660342 in words is "two hundred fifty-three billion, six hundred fifteen million, six hundred sixty thousand, three hundred forty-two".