11516657 has 8 divisors (see below), whose sum is σ = 11913000. Its totient is φ = 11124864.

The previous prime is 11516581. The next prime is 11516663. The reversal of 11516657 is 75661511.

It can be written as a sum of positive squares in 4 ways, for example, as 3876961 + 7639696 = 1969^2 + 2764^2 .

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

It is not a de Polignac number, because 11516657 - 2¹⁰ = 11515633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11516677) 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, 4469 + ... + 6557.

It is an arithmetic number, because the mean of its divisors is an integer number (1489125).

Almost surely, 2^11516657 is an apocalyptic number.

It is an amenable number.

11516657 is a deficient number, since it is larger than the sum of its proper divisors (396343).

11516657 is a wasteful number, since it uses less digits than its factorization.

11516657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275.

The product of its digits is 6300, while the sum is 32.

The square root of 11516657 is about 3393.6200435523. The cubic root of 11516657 is about 225.8267984051.

The spelling of 11516657 in words is "eleven million, five hundred sixteen thousand, six hundred fifty-seven".