116661757 has 2 divisors, whose sum is σ = 116661758. Its totient is φ = 116661756.

The previous prime is 116661731. The next prime is 116661761. The reversal of 116661757 is 757166611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116510436 + 151321 = 10794^2 + 389^2 .

It is an emirp because it is prime and its reverse (757166611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116661757 - 2¹⁵ = 116628989 is a prime.

It is equal to p_6662299 and since 116661757 and 6662299 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116661557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58330878 + 58330879.

It is an arithmetic number, because the mean of its divisors is an integer number (58330879).

Almost surely, 2^116661757 is an apocalyptic number.

It is an amenable number.

116661757 is a deficient number, since it is larger than the sum of its proper divisors (1).

116661757 is an equidigital number, since it uses as much as digits as its factorization.

116661757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 116661757 is about 10801.0072215511. The cubic root of 116661757 is about 488.6255485141.

The spelling of 116661757 in words is "one hundred sixteen million, six hundred sixty-one thousand, seven hundred fifty-seven".