199653445814 has 16 divisors (see below), whose sum is σ = 319411230768. Its totient is φ = 93268760832.

The previous prime is 199653445741. The next prime is 199653445819. The reversal of 199653445814 is 418544356991.

It is a super-2 number, since 2×199653445814² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199653445819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21426584 + ... + 21435899.

It is an arithmetic number, because the mean of its divisors is an integer number (19963201923).

Almost surely, 2^199653445814 is an apocalyptic number.

199653445814 is a deficient number, since it is larger than the sum of its proper divisors (119757784954).

199653445814 is a wasteful number, since it uses less digits than its factorization.

199653445814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42862639.

The product of its digits is 18662400, while the sum is 59.

The spelling of 199653445814 in words is "one hundred ninety-nine billion, six hundred fifty-three million, four hundred forty-five thousand, eight hundred fourteen".