1053406666 has 32 divisors (see below), whose sum is σ = 1809864000. Its totient is φ = 455529216.

The previous prime is 1053406657. The next prime is 1053406681. The reversal of 1053406666 is 6666043501.

It is a super-2 number, since 2×1053406666² = 2219331207946471112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95085 + ... + 105583.

It is an arithmetic number, because the mean of its divisors is an integer number (56558250).

Almost surely, 2^1053406666 is an apocalyptic number.

1053406666 is a deficient number, since it is larger than the sum of its proper divisors (756457334).

1053406666 is a wasteful number, since it uses less digits than its factorization.

1053406666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 1053406666 is about 32456.2269218096. The cubic root of 1053406666 is about 1017.4943837967.

The spelling of 1053406666 in words is "one billion, fifty-three million, four hundred six thousand, six hundred sixty-six".