199946611156 has 6 divisors (see below), whose sum is σ = 349906569530. Its totient is φ = 99973305576.

The previous prime is 199946611121. The next prime is 199946611177. The reversal of 199946611156 is 651116649991.

199946611156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 112549514256 + 87397096900 = 335484^2 + 295630^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 199946611156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24993326391 + ... + 24993326398.

Almost surely, 2^199946611156 is an apocalyptic number.

It is an amenable number.

199946611156 is a deficient number, since it is larger than the sum of its proper divisors (149959958374).

199946611156 is a wasteful number, since it uses less digits than its factorization.

199946611156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49986652793 (or 49986652791 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 58.

The spelling of 199946611156 in words is "one hundred ninety-nine billion, nine hundred forty-six million, six hundred eleven thousand, one hundred fifty-six".