2661088258 has 4 divisors (see below), whose sum is σ = 3991632390. Its totient is φ = 1330544128.

The previous prime is 2661088229. The next prime is 2661088259. The reversal of 2661088258 is 8528801662.

2661088258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2202143329 + 458944929 = 46927^2 + 21423^2 .

It is not an unprimeable number, because it can be changed into a prime (2661088259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665272063 + ... + 665272066.

Almost surely, 2^2661088258 is an apocalyptic number.

2661088258 is a deficient number, since it is larger than the sum of its proper divisors (1330544132).

2661088258 is a wasteful number, since it uses less digits than its factorization.

2661088258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330544131.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 2661088258 is about 51585.7369628466. The cubic root of 2661088258 is about 1385.7549105166.

The spelling of 2661088258 in words is "two billion, six hundred sixty-one million, eighty-eight thousand, two hundred fifty-eight".