163693068100 has 27 divisors (see below), whose sum is σ = 355222737597. Its totient is φ = 65475608880.

The previous prime is 163693068083. The next prime is 163693068101. The reversal of 163693068100 is 1860396361.

The square root of 163693068100 is 404590.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 58929504516 + 104763563584 = 242754^2 + 323672^2 .

It is a super-2 number, since 2×163693068100² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163693068101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4025671 + ... + 4066129.

Almost surely, 2^163693068100 is an apocalyptic number.

163693068100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163693068100 is the 404590-th square number.

It is an amenable number.

163693068100 is an abundant number, since it is smaller than the sum of its proper divisors (191529669497).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163693068100 is an frugal number, since it uses more digits than its factorization.

163693068100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80932 (or 40466 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 163693068100 in words is "one hundred sixty-three billion, six hundred ninety-three million, sixty-eight thousand, one hundred".