2661255105 has 8 divisors (see below), whose sum is σ = 4258008192. Its totient is φ = 1419336048.

The previous prime is 2661255097. The next prime is 2661255131. The reversal of 2661255105 is 5015521662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2661255105 - 2³ = 2661255097 is a prime.

It is a super-2 number, since 2×2661255105² = 14164557467777122050, which contains 22 as substring.

It is a Curzon number.

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, 88708489 + ... + 88708518.

It is an arithmetic number, because the mean of its divisors is an integer number (532251024).

Almost surely, 2^2661255105 is an apocalyptic number.

It is an amenable number.

2661255105 is a deficient number, since it is larger than the sum of its proper divisors (1596753087).

2661255105 is a wasteful number, since it uses less digits than its factorization.

2661255105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177417015.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 2661255105 is about 51587.3541190087. The cubic root of 2661255105 is about 1385.7838716277.

Adding to 2661255105 its reverse (5015521662), we get a palindrome (7676776767).

The spelling of 2661255105 in words is "two billion, six hundred sixty-one million, two hundred fifty-five thousand, one hundred five".