116457661 has 4 divisors (see below), whose sum is σ = 116762112. Its totient is φ = 116153212.

The previous prime is 116457629. The next prime is 116457689. The reversal of 116457661 is 166754611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116457661 - 2⁵ = 116457629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116457661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116457961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151651 + ... + 152416.

It is an arithmetic number, because the mean of its divisors is an integer number (29190528).

Almost surely, 2^116457661 is an apocalyptic number.

It is an amenable number.

116457661 is a deficient number, since it is larger than the sum of its proper divisors (304451).

116457661 is an equidigital number, since it uses as much as digits as its factorization.

116457661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304450.

The product of its digits is 30240, while the sum is 37.

The square root of 116457661 is about 10791.5550779301. Note that the first 3 decimals coincide. The cubic root of 116457661 is about 488.3404372796.

It can be divided in two parts, 11645 and 7661, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 116457661 in words is "one hundred sixteen million, four hundred fifty-seven thousand, six hundred sixty-one".