554040666 has 12 divisors (see below), whose sum is σ = 1200421482. Its totient is φ = 184680216.

The previous prime is 554040611. The next prime is 554040671. The reversal of 554040666 is 666040455.

It is a happy number.

554040666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 397165041 + 156875625 = 19929^2 + 12525^2 .

It is a super-2 number, since 2×554040666² = 613922119163447112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 554040666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15390001 + ... + 15390036.

Almost surely, 2^554040666 is an apocalyptic number.

554040666 is an abundant number, since it is smaller than the sum of its proper divisors (646380816).

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

554040666 is a wasteful number, since it uses less digits than its factorization.

554040666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30780045 (or 30780042 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 554040666 is about 23538.0684424190. The cubic root of 554040666 is about 821.3228034678.

The spelling of 554040666 in words is "five hundred fifty-four million, forty thousand, six hundred sixty-six".