55005005440066 has 64 divisors (see below), whose sum is σ = 97106173228800. Its totient is φ = 23086321090560.

The previous prime is 55005005440039. The next prime is 55005005440103. The reversal of 55005005440066 is 66004450050055.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432036130 + ... + 432163426.

It is an arithmetic number, because the mean of its divisors is an integer number (1517283956700).

Almost surely, 2^{55005005440066} is an apocalyptic number.

55005005440066 is a deficient number, since it is larger than the sum of its proper divisors (42101167788734).

55005005440066 is a wasteful number, since it uses less digits than its factorization.

55005005440066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149179.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 55005005440066 in words is "fifty-five trillion, five billion, five million, four hundred forty thousand, sixty-six".