11661200374312 has 8 divisors (see below), whose sum is σ = 21864750701850. Its totient is φ = 5830600187152.

The previous prime is 11661200374309. The next prime is 11661200374387. The reversal of 11661200374312 is 21347300216611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9437147136036 + 2224053238276 = 3071994^2 + 1491326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728825023387 + ... + 728825023402.

Almost surely, 2^{11661200374312} is an apocalyptic number.

It is an amenable number.

11661200374312 is a deficient number, since it is larger than the sum of its proper divisors (10203550327538).

11661200374312 is a wasteful number, since it uses less digits than its factorization.

11661200374312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457650046795 (or 1457650046791 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 11661200374312 in words is "eleven trillion, six hundred sixty-one billion, two hundred million, three hundred seventy-four thousand, three hundred twelve".