1671662323111 has 8 divisors (see below), whose sum is σ = 1845603091584. Its totient is φ = 1501383465720.

The previous prime is 1671662323091. The next prime is 1671662323157. The reversal of 1671662323111 is 1113232661761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1671662323111 - 2⁹ = 1671662322599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671662323411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915476811 + ... + 915478636.

It is an arithmetic number, because the mean of its divisors is an integer number (230700386448).

Almost surely, 2^{1671662323111} is an apocalyptic number.

1671662323111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1671662323111 is a deficient number, since it is larger than the sum of its proper divisors (173940768473).

1671662323111 is a wasteful number, since it uses less digits than its factorization.

1671662323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830955541.

The product of its digits is 54432, while the sum is 40.

Adding to 1671662323111 its reverse (1113232661761), we get a palindrome (2784894984872).

The spelling of 1671662323111 in words is "one trillion, six hundred seventy-one billion, six hundred sixty-two million, three hundred twenty-three thousand, one hundred eleven".