16473887658 has 24 divisors (see below), whose sum is σ = 36563996196. Its totient is φ = 5357361600.

The previous prime is 16473887627. The next prime is 16473887687. The reversal of 16473887658 is 85678837461.

16473887658 is a `hidden beast` number, since 16 + 473 + 88 + 76 + 5 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16447293009 + 26594649 = 128247^2 + 5157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16473887595 and 16473887604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11160433 + ... + 11161908.

Almost surely, 2^16473887658 is an apocalyptic number.

16473887658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16473887658 is an abundant number, since it is smaller than the sum of its proper divisors (20090108538).

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

16473887658 is a wasteful number, since it uses less digits than its factorization.

16473887658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22322390 (or 22322387 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 16473887658 in words is "sixteen billion, four hundred seventy-three million, eight hundred eighty-seven thousand, six hundred fifty-eight".