1116660161601 has 36 divisors (see below), whose sum is σ = 1687691978544. Its totient is φ = 738756790200.

The previous prime is 1116660161599. The next prime is 1116660161611. The reversal of 1116660161601 is 1061610666111.

It is not a de Polignac number, because 1116660161601 - 2¹ = 1116660161599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1116660161611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 209886 + ... + 1509096.

Almost surely, 2^{1116660161601} is an apocalyptic number.

It is an amenable number.

1116660161601 is a deficient number, since it is larger than the sum of its proper divisors (571031816943).

1116660161601 is an frugal number, since it uses more digits than its factorization.

1116660161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299366 (or 1299345 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 1116660161601 in words is "one trillion, one hundred sixteen billion, six hundred sixty million, one hundred sixty-one thousand, six hundred one".