1671162882661 has 4 divisors (see below), whose sum is σ = 1671165517824. Its totient is φ = 1671160247500.

The previous prime is 1671162882617. The next prime is 1671162882673. The reversal of 1671162882661 is 1662882611761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1671162882661 - 2¹⁵ = 1671162849893 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 (1671162882161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276786 + ... + 1849036.

It is an arithmetic number, because the mean of its divisors is an integer number (417791379456).

Almost surely, 2^{1671162882661} is an apocalyptic number.

It is an amenable number.

1671162882661 is a deficient number, since it is larger than the sum of its proper divisors (2635163).

1671162882661 is a wasteful number, since it uses less digits than its factorization.

1671162882661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635162.

The product of its digits is 2322432, while the sum is 55.

The spelling of 1671162882661 in words is "one trillion, six hundred seventy-one billion, one hundred sixty-two million, eight hundred eighty-two thousand, six hundred sixty-one".