1608856523 has 12 divisors (see below), whose sum is σ = 1746088200. Its totient is φ = 1477259520.

The previous prime is 1608856493. The next prime is 1608856541. The reversal of 1608856523 is 3256588061.

It is not a de Polignac number, because 1608856523 - 2¹⁶ = 1608790987 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1608856553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428 + ... + 56726.

It is an arithmetic number, because the mean of its divisors is an integer number (145507350).

Almost surely, 2^1608856523 is an apocalyptic number.

1608856523 is a deficient number, since it is larger than the sum of its proper divisors (137231677).

1608856523 is an equidigital number, since it uses as much as digits as its factorization.

1608856523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56398 (or 56357 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 1608856523 is about 40110.5537608246. The cubic root of 1608856523 is about 1171.7611781722.

The spelling of 1608856523 in words is "one billion, six hundred eight million, eight hundred fifty-six thousand, five hundred twenty-three".