163040655 has 16 divisors (see below), whose sum is σ = 261241344. Its totient is φ = 86829600.

The previous prime is 163040623. The next prime is 163040663. The reversal of 163040655 is 556040361.

It is not a de Polignac number, because 163040655 - 2⁵ = 163040623 is a prime.

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, 3430 + ... + 18380.

It is an arithmetic number, because the mean of its divisors is an integer number (16327584).

Almost surely, 2^163040655 is an apocalyptic number.

163040655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163040655 is a deficient number, since it is larger than the sum of its proper divisors (98200689).

163040655 is a wasteful number, since it uses less digits than its factorization.

163040655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15686.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 163040655 is about 12768.7374082170. The cubic root of 163040655 is about 546.3009685260.

The spelling of 163040655 in words is "one hundred sixty-three million, forty thousand, six hundred fifty-five".