1077121173566 has 16 divisors (see below), whose sum is σ = 1666077963264. Its totient is φ = 521984352504.

The previous prime is 1077121173559. The next prime is 1077121173587. The reversal of 1077121173566 is 6653711217701.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1077121173566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55615250 + ... + 55634613.

It is an arithmetic number, because the mean of its divisors is an integer number (104129872704).

Almost surely, 2^{1077121173566} is an apocalyptic number.

1077121173566 is a deficient number, since it is larger than the sum of its proper divisors (588956789698).

1077121173566 is a wasteful number, since it uses less digits than its factorization.

1077121173566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111250015.

The product of its (nonzero) digits is 370440, while the sum is 47.

The spelling of 1077121173566 in words is "one trillion, seventy-seven billion, one hundred twenty-one million, one hundred seventy-three thousand, five hundred sixty-six".