2660266155 has 16 divisors (see below), whose sum is σ = 4319956224. Its totient is φ = 1397631840.

The previous prime is 2660266151. The next prime is 2660266183. The reversal of 2660266155 is 5516620662.

It is a happy number.

It is not a de Polignac number, because 2660266155 - 2² = 2660266151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2660266151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322511 + ... + 1324520.

It is an arithmetic number, because the mean of its divisors is an integer number (269997264).

Almost surely, 2^2660266155 is an apocalyptic number.

2660266155 is a deficient number, since it is larger than the sum of its proper divisors (1659690069).

2660266155 is a wasteful number, since it uses less digits than its factorization.

2660266155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647106.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2660266155 is about 51577.7680304218. The cubic root of 2660266155 is about 1385.6121931400.

The spelling of 2660266155 in words is "two billion, six hundred sixty million, two hundred sixty-six thousand, one hundred fifty-five".