116664013 has 8 divisors (see below), whose sum is σ = 127786680. Its totient is φ = 106014720.

The previous prime is 116664007. The next prime is 116664017. The reversal of 116664013 is 310466611.

It can be written as a sum of positive squares in 4 ways, for example, as 57957769 + 58706244 = 7613^2 + 7662^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116664013 - 2²¹ = 114566861 is a prime.

It is a super-2 number, since 2×116664013² = 27220983858528338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116664017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117828 + ... + 118813.

It is an arithmetic number, because the mean of its divisors is an integer number (15973335).

Almost surely, 2^116664013 is an apocalyptic number.

It is an amenable number.

116664013 is a deficient number, since it is larger than the sum of its proper divisors (11122667).

116664013 is a wasteful number, since it uses less digits than its factorization.

116664013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236687.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 116664013 is about 10801.1116557510. Note that the first 3 decimals coincide. The cubic root of 116664013 is about 488.6286981670.

The spelling of 116664013 in words is "one hundred sixteen million, six hundred sixty-four thousand, thirteen".