45666555 has 16 divisors (see below), whose sum is σ = 79709184. Its totient is φ = 22141280.

The previous prime is 45666541. The next prime is 45666571. The reversal of 45666555 is 55566654.

It is not a de Polignac number, because 45666555 - 2¹⁵ = 45633787 is a prime.

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, 138219 + ... + 138548.

It is an arithmetic number, because the mean of its divisors is an integer number (4981824).

Almost surely, 2^45666555 is an apocalyptic number.

45666555 is a deficient number, since it is larger than the sum of its proper divisors (34042629).

45666555 is a wasteful number, since it uses less digits than its factorization.

45666555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276786.

The product of its digits is 540000, while the sum is 42.

The square root of 45666555 is about 6757.7033820670. The cubic root of 45666555 is about 357.4369262941.

Subtracting 45666555 from its reverse (55566654), we obtain a palindrome (9900099).

The spelling of 45666555 in words is "forty-five million, six hundred sixty-six thousand, five hundred fifty-five".