16168188460 has 48 divisors (see below), whose sum is σ = 35980731360. Its totient is φ = 6091957760.

The previous prime is 16168188457. The next prime is 16168188481. The reversal of 16168188460 is 6488186161.

It is a happy number.

It is a super-2 number, since 2×16168188460² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316174 + ... + 363733.

It is an arithmetic number, because the mean of its divisors is an integer number (749598570).

Almost surely, 2^16168188460 is an apocalyptic number.

16168188460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16168188460 is an abundant number, since it is smaller than the sum of its proper divisors (19812542900).

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

16168188460 is a wasteful number, since it uses less digits than its factorization.

16168188460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679986 (or 679984 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 16168188460 in words is "sixteen billion, one hundred sixty-eight million, one hundred eighty-eight thousand, four hundred sixty".