1656052111 has 4 divisors (see below), whose sum is σ = 1892630992. Its totient is φ = 1419473232.

The previous prime is 1656052091. The next prime is 1656052117. The reversal of 1656052111 is 1112506561.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1656052111 - 2⁷ = 1656051983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1656052111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656052117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118289430 + ... + 118289443.

It is an arithmetic number, because the mean of its divisors is an integer number (473157748).

Almost surely, 2^1656052111 is an apocalyptic number.

1656052111 is a deficient number, since it is larger than the sum of its proper divisors (236578881).

1656052111 is an equidigital number, since it uses as much as digits as its factorization.

1656052111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236578880.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1656052111 is about 40694.6201726960. The cubic root of 1656052111 is about 1183.1087496999.

Adding to 1656052111 its reverse (1112506561), we get a palindrome (2768558672).

The spelling of 1656052111 in words is "one billion, six hundred fifty-six million, fifty-two thousand, one hundred eleven".