1199911670512 has 20 divisors (see below), whose sum is σ = 2325288561640. Its totient is φ = 599837203008.

The previous prime is 1199911670453. The next prime is 1199911670543. The reversal of 1199911670512 is 2150761199911.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1199911670512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331043 + ... + 7492930.

It is an arithmetic number, because the mean of its divisors is an integer number (116264428082).

Almost surely, 2^{1199911670512} is an apocalyptic number.

It is an amenable number.

1199911670512 is a deficient number, since it is larger than the sum of its proper divisors (1125376891128).

1199911670512 is a wasteful number, since it uses less digits than its factorization.

1199911670512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14829040 (or 14829034 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 52.

The spelling of 1199911670512 in words is "one trillion, one hundred ninety-nine billion, nine hundred eleven million, six hundred seventy thousand, five hundred twelve".