2011661102 has 32 divisors (see below), whose sum is σ = 3490871904. Its totient is φ = 859264000.

The previous prime is 2011661063. The next prime is 2011661149.

2011661102 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258338 + ... + 266010.

It is an arithmetic number, because the mean of its divisors is an integer number (109089747).

Almost surely, 2^2011661102 is an apocalyptic number.

2011661102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2011661102 is a deficient number, since it is larger than the sum of its proper divisors (1479210802).

2011661102 is a wasteful number, since it uses less digits than its factorization.

2011661102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2011661102 is about 44851.5451461820. The cubic root of 2011661102 is about 1262.3649841825.

It can be divided in two parts, 20116 and 61102, that added together give a palindrome (81218).

The spelling of 2011661102 in words is "two billion, eleven million, six hundred sixty-one thousand, one hundred two".