168006355 has 16 divisors (see below), whose sum is σ = 221219424. Its totient is φ = 121473280.

The previous prime is 168006337. The next prime is 168006373. The reversal of 168006355 is 553600861.

It is an interprime number because it is at equal distance from previous prime (168006337) and next prime (168006373).

It is a de Polignac number, because none of the positive numbers 2^k-168006355 is a prime.

It is a super-2 number, since 2×168006355² = 56452270640772050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168006355.

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, 687 + ... + 18343.

It is an arithmetic number, because the mean of its divisors is an integer number (13826214).

Almost surely, 2^168006355 is an apocalyptic number.

168006355 is a deficient number, since it is larger than the sum of its proper divisors (53213069).

168006355 is a wasteful number, since it uses less digits than its factorization.

168006355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17846.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 168006355 is about 12961.7265439447. The cubic root of 168006355 is about 551.7917927136.

The spelling of 168006355 in words is "one hundred sixty-eight million, six thousand, three hundred fifty-five".