163054418690 has 24 divisors (see below), whose sum is σ = 309758234940. Its totient is φ = 61789041504.

The previous prime is 163054418587. The next prime is 163054418699. The reversal of 163054418690 is 96814450361.

It can be written as a sum of positive squares in 2 ways, for example, as 162876009241 + 178409449 = 403579^2 + 13357^2 .

It is a super-2 number, since 2×163054418690² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163054418699) 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, 22580105 + ... + 22587324.

Almost surely, 2^163054418690 is an apocalyptic number.

163054418690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163054418690 is a deficient number, since it is larger than the sum of its proper divisors (146703816250).

163054418690 is a wasteful number, since it uses less digits than its factorization.

163054418690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167474 (or 45167455 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 163054418690 in words is "one hundred sixty-three billion, fifty-four million, four hundred eighteen thousand, six hundred ninety".