10666078 has 4 divisors (see below), whose sum is σ = 15999120. Its totient is φ = 5333038.

The previous prime is 10666069. The next prime is 10666093. The reversal of 10666078 is 87066601.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10666078² = 227530439804168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2666518 + ... + 2666521.

It is an arithmetic number, because the mean of its divisors is an integer number (3999780).

Almost surely, 2^10666078 is an apocalyptic number.

10666078 is a deficient number, since it is larger than the sum of its proper divisors (5333042).

10666078 is an equidigital number, since it uses as much as digits as its factorization.

10666078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333041.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 10666078 is about 3265.8962016574. The cubic root of 10666078 is about 220.1244337383.

The spelling of 10666078 in words is "ten million, six hundred sixty-six thousand, seventy-eight".