1066611406 has 8 divisors (see below), whose sum is σ = 1828476720. Its totient is φ = 457119168.

The previous prime is 1066611401. The next prime is 1066611419. The reversal of 1066611406 is 6041166601.

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

It is a super-2 number, since 2×1066611406² = 2275319782818593672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066611401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38093251 + ... + 38093278.

It is an arithmetic number, because the mean of its divisors is an integer number (228559590).

Almost surely, 2^1066611406 is an apocalyptic number.

1066611406 is a deficient number, since it is larger than the sum of its proper divisors (761865314).

1066611406 is an equidigital number, since it uses as much as digits as its factorization.

1066611406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76186538.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1066611406 is about 32659.0172234254. The cubic root of 1066611406 is about 1021.7282650658.

The spelling of 1066611406 in words is "one billion, sixty-six million, six hundred eleven thousand, four hundred six".