68169355 has 24 divisors (see below), whose sum is σ = 87931872. Its totient is φ = 50637312.

The previous prime is 68169349. The next prime is 68169373. The reversal of 68169355 is 55396186.

It is a de Polignac number, because none of the positive numbers 2^k-68169355 is a prime.

It is a super-2 number, since 2×68169355² = 9294121922232050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157219 + ... + 157651.

It is an arithmetic number, because the mean of its divisors is an integer number (3663828).

Almost surely, 2^68169355 is an apocalyptic number.

68169355 is a deficient number, since it is larger than the sum of its proper divisors (19762517).

68169355 is a wasteful number, since it uses less digits than its factorization.

68169355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 498 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 68169355 is about 8256.4735208199. The cubic root of 68169355 is about 408.5040766807.

The spelling of 68169355 in words is "sixty-eight million, one hundred sixty-nine thousand, three hundred fifty-five".