1671075665291 has 8 divisors (see below), whose sum is σ = 1672449670080. Its totient is φ = 1669702151808.

The previous prime is 1671075665269. The next prime is 1671075665297. The reversal of 1671075665291 is 1925665701761.

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 1671075665291 - 2⁶ = 1671075665227 is a prime.

It is a super-2 number, since 2×1671075665291² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1671075665297) 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, 6844085 + ... + 7084041.

It is an arithmetic number, because the mean of its divisors is an integer number (209056208760).

Almost surely, 2^{1671075665291} is an apocalyptic number.

1671075665291 is a deficient number, since it is larger than the sum of its proper divisors (1374004789).

1671075665291 is a wasteful number, since it uses less digits than its factorization.

1671075665291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245653.

The product of its (nonzero) digits is 4762800, while the sum is 56.

The spelling of 1671075665291 in words is "one trillion, six hundred seventy-one billion, seventy-five million, six hundred sixty-five thousand, two hundred ninety-one".