163505995190 has 16 divisors (see below), whose sum is σ = 294395840928. Its totient is φ = 65383498176.

The previous prime is 163505995151. The next prime is 163505995201. The reversal of 163505995190 is 91599505361.

It is a happy number.

It is a super-2 number, since 2×163505995190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326127 + ... + 2395386.

It is an arithmetic number, because the mean of its divisors is an integer number (18399740058).

Almost surely, 2^163505995190 is an apocalyptic number.

163505995190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163505995190 is a deficient number, since it is larger than the sum of its proper divisors (130889845738).

163505995190 is a wasteful number, since it uses less digits than its factorization.

163505995190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724983.

The product of its (nonzero) digits is 1640250, while the sum is 53.

The spelling of 163505995190 in words is "one hundred sixty-three billion, five hundred five million, nine hundred ninety-five thousand, one hundred ninety".