2155030266 has 16 divisors (see below), whose sum is σ = 4315269600. Its totient is φ = 717475248.

The previous prime is 2155030249. The next prime is 2155030309. The reversal of 2155030266 is 6620305512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211656 + ... + 221603.

It is an arithmetic number, because the mean of its divisors is an integer number (269704350).

Almost surely, 2^2155030266 is an apocalyptic number.

2155030266 is an abundant number, since it is smaller than the sum of its proper divisors (2160239334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155030266 is a wasteful number, since it uses less digits than its factorization.

2155030266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434093.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2155030266 is about 46422.3035404319. The cubic root of 2155030266 is about 1291.6686668541.

Adding to 2155030266 its reverse (6620305512), we get a palindrome (8775335778).

The spelling of 2155030266 in words is "two billion, one hundred fifty-five million, thirty thousand, two hundred sixty-six".