10664658 has 48 divisors (see below), whose sum is σ = 24186240. Its totient is φ = 3392928.

The previous prime is 10664639. The next prime is 10664659. The reversal of 10664658 is 85646601.

10664658 is a `hidden beast` number, since 1 + 0 + 6 + 646 + 5 + 8 = 666.

10664658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10664658² = 227469860513928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10664659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44503 + ... + 44741.

It is an arithmetic number, because the mean of its divisors is an integer number (503880).

Almost surely, 2^10664658 is an apocalyptic number.

10664658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10664658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12093120).

10664658 is an abundant number, since it is smaller than the sum of its proper divisors (13521582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10664658 is a wasteful number, since it uses less digits than its factorization.

10664658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 10664658 is about 3265.6787962076. The cubic root of 10664658 is about 220.1146647439.

The spelling of 10664658 in words is "ten million, six hundred sixty-four thousand, six hundred fifty-eight".