2021105662 has 4 divisors (see below), whose sum is σ = 3031658496. Its totient is φ = 1010552830.

The previous prime is 2021105641. The next prime is 2021105689. The reversal of 2021105662 is 2665011202.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505276414 + ... + 505276417.

It is an arithmetic number, because the mean of its divisors is an integer number (757914624).

Almost surely, 2^2021105662 is an apocalyptic number.

2021105662 is a deficient number, since it is larger than the sum of its proper divisors (1010552834).

2021105662 is a wasteful number, since it uses less digits than its factorization.

2021105662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010552833.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2021105662 is about 44956.7087540892. The cubic root of 2021105662 is about 1264.3374622218.

Adding to 2021105662 its reverse (2665011202), we get a palindrome (4686116864).

The spelling of 2021105662 in words is "two billion, twenty-one million, one hundred five thousand, six hundred sixty-two".