1167181274648 has 16 divisors (see below), whose sum is σ = 2188712670480. Its totient is φ = 583524562528.

The previous prime is 1167181274617. The next prime is 1167181274687. The reversal of 1167181274648 is 8464721817611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1167181274593 and 1167181274602.

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, 8184236 + ... + 8325627.

It is an arithmetic number, because the mean of its divisors is an integer number (136794541905).

Almost surely, 2^{1167181274648} is an apocalyptic number.

It is an amenable number.

1167181274648 is a deficient number, since it is larger than the sum of its proper divisors (1021531395832).

1167181274648 is a wasteful number, since it uses less digits than its factorization.

1167181274648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16518706 (or 16518702 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The spelling of 1167181274648 in words is "one trillion, one hundred sixty-seven billion, one hundred eighty-one million, two hundred seventy-four thousand, six hundred forty-eight".