199865948608132 has 6 divisors (see below), whose sum is σ = 349765410064238. Its totient is φ = 99932974304064.

The previous prime is 199865948608091. The next prime is 199865948608189. The reversal of 199865948608132 is 231806849568991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 162555768069696 + 37310180538436 = 12749736^2 + 6108206^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24983243576013 + ... + 24983243576020.

Almost surely, 2^{199865948608132} is an apocalyptic number.

It is an amenable number.

199865948608132 is a deficient number, since it is larger than the sum of its proper divisors (149899461456106).

199865948608132 is a wasteful number, since it uses less digits than its factorization.

199865948608132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49966487152037 (or 49966487152035 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 79.

The spelling of 199865948608132 in words is "one hundred ninety-nine trillion, eight hundred sixty-five billion, nine hundred forty-eight million, six hundred eight thousand, one hundred thirty-two".