2660466655 has 32 divisors (see below), whose sum is σ = 4108750848. Its totient is φ = 1604966400.

The previous prime is 2660466643. The next prime is 2660466661. The reversal of 2660466655 is 5566640662.

It is a de Polignac number, because none of the positive numbers 2^k-2660466655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99522 + ... + 123391.

It is an arithmetic number, because the mean of its divisors is an integer number (128398464).

Almost surely, 2^2660466655 is an apocalyptic number.

2660466655 is a deficient number, since it is larger than the sum of its proper divisors (1448284193).

2660466655 is a wasteful number, since it uses less digits than its factorization.

2660466655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222967.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The square root of 2660466655 is about 51579.7116606908. The cubic root of 2660466655 is about 1385.6470027229.

The spelling of 2660466655 in words is "two billion, six hundred sixty million, four hundred sixty-six thousand, six hundred fifty-five".