5420255666 has 32 divisors (see below), whose sum is σ = 9821952000. Its totient is φ = 2191471632.

The previous prime is 5420255653. The next prime is 5420255681. The reversal of 5420255666 is 6665520245.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20945 + ... + 106203.

It is an arithmetic number, because the mean of its divisors is an integer number (306936000).

Almost surely, 2^5420255666 is an apocalyptic number.

5420255666 is a deficient number, since it is larger than the sum of its proper divisors (4401696334).

5420255666 is a wasteful number, since it uses less digits than its factorization.

5420255666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85526.

The product of its (nonzero) digits is 432000, while the sum is 41.

The square root of 5420255666 is about 73622.3856310022. The cubic root of 5420255666 is about 1756.6015327426.

The spelling of 5420255666 in words is "five billion, four hundred twenty million, two hundred fifty-five thousand, six hundred sixty-six".