116532556661 has 16 divisors (see below), whose sum is σ = 122361415680. Its totient is φ = 110834025840.

The previous prime is 116532556649. The next prime is 116532556687. The reversal of 116532556661 is 166655235611.

It is a cyclic number.

It is not a de Polignac number, because 116532556661 - 2¹⁰ = 116532555637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116532556601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12847850 + ... + 12856916.

It is an arithmetic number, because the mean of its divisors is an integer number (7647588480).

Almost surely, 2^116532556661 is an apocalyptic number.

It is an amenable number.

116532556661 is a deficient number, since it is larger than the sum of its proper divisors (5828859019).

116532556661 is an equidigital number, since it uses as much as digits as its factorization.

116532556661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16184.

The product of its digits is 972000, while the sum is 47.

The spelling of 116532556661 in words is "one hundred sixteen billion, five hundred thirty-two million, five hundred fifty-six thousand, six hundred sixty-one".