1667601113 has 2 divisors, whose sum is σ = 1667601114. Its totient is φ = 1667601112.

The previous prime is 1667601097. The next prime is 1667601119. The reversal of 1667601113 is 3111067661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1644059209 + 23541904 = 40547^2 + 4852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1667601113 - 2⁴ = 1667601097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1667601113.

It is not a weakly prime, because it can be changed into another prime (1667601119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833800556 + 833800557.

It is an arithmetic number, because the mean of its divisors is an integer number (833800557).

Almost surely, 2^1667601113 is an apocalyptic number.

It is an amenable number.

1667601113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667601113 is an equidigital number, since it uses as much as digits as its factorization.

1667601113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1667601113 is about 40836.2720262269. The cubic root of 1667601113 is about 1185.8526418254.

Adding to 1667601113 its reverse (3111067661), we get a palindrome (4778668774).

The spelling of 1667601113 in words is "one billion, six hundred sixty-seven million, six hundred one thousand, one hundred thirteen".