10661799 has 8 divisors (see below), whose sum is σ = 14674432. Its totient is φ = 6878520.

The previous prime is 10661789. The next prime is 10661813. The reversal of 10661799 is 99716601.

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

It is not a de Polignac number, because 10661799 - 2⁷ = 10661671 is a prime.

It is a super-2 number, since 2×10661799² = 227347915832802, 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 (10661789) 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, 57229 + ... + 57414.

It is an arithmetic number, because the mean of its divisors is an integer number (1834304).

Almost surely, 2^10661799 is an apocalyptic number.

10661799 is a deficient number, since it is larger than the sum of its proper divisors (4012633).

10661799 is a wasteful number, since it uses less digits than its factorization.

10661799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114677.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 10661799 is about 3265.2410324507. The cubic root of 10661799 is about 220.0949934123.

The spelling of 10661799 in words is "ten million, six hundred sixty-one thousand, seven hundred ninety-nine".