11561275232776 has 8 divisors (see below), whose sum is σ = 21677391061470. Its totient is φ = 5780637616384.

The previous prime is 11561275232761. The next prime is 11561275232789. The reversal of 11561275232776 is 67723257216511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7099421696676 + 4461853536100 = 2664474^2 + 2112310^2 .

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

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722579702041 + ... + 722579702056.

Almost surely, 2^{11561275232776} is an apocalyptic number.

It is an amenable number.

11561275232776 is a deficient number, since it is larger than the sum of its proper divisors (10116115828694).

11561275232776 is a wasteful number, since it uses less digits than its factorization.

11561275232776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445159404103 (or 1445159404099 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 55.

The spelling of 11561275232776 in words is "eleven trillion, five hundred sixty-one billion, two hundred seventy-five million, two hundred thirty-two thousand, seven hundred seventy-six".