1672056111 has 24 divisors (see below), whose sum is σ = 2456894592. Its totient is φ = 1003132000.

The previous prime is 1672056109. The next prime is 1672056209. The reversal of 1672056111 is 1116502761.

It is not a de Polignac number, because 1672056111 - 2¹ = 1672056109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672056101) 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 23 ways as a sum of consecutive naturals, for example, 334150 + ... + 339116.

It is an arithmetic number, because the mean of its divisors is an integer number (102370608).

Almost surely, 2^1672056111 is an apocalyptic number.

1672056111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1672056111 is a deficient number, since it is larger than the sum of its proper divisors (784838481).

1672056111 is a wasteful number, since it uses less digits than its factorization.

1672056111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183 (or 5082 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1672056111 is about 40890.7827144456. The cubic root of 1672056111 is about 1186.9077050115.

Adding to 1672056111 its reverse (1116502761), we get a palindrome (2788558872).

The spelling of 1672056111 in words is "one billion, six hundred seventy-two million, fifty-six thousand, one hundred eleven".