16198041993 has 16 divisors (see below), whose sum is σ = 25256749056. Its totient is φ = 9040767120.

The previous prime is 16198041991. The next prime is 16198041997. The reversal of 16198041993 is 39914089161.

It is not a de Polignac number, because 16198041993 - 2¹ = 16198041991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16198041991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8968113 + ... + 8969918.

It is an arithmetic number, because the mean of its divisors is an integer number (1578546816).

Almost surely, 2^16198041993 is an apocalyptic number.

It is an amenable number.

16198041993 is a deficient number, since it is larger than the sum of its proper divisors (9058707063).

16198041993 is a wasteful number, since it uses less digits than its factorization.

16198041993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17938084.

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 16198041993 in words is "sixteen billion, one hundred ninety-eight million, forty-one thousand, nine hundred ninety-three".