671161016669 has 32 divisors (see below), whose sum is σ = 821894699136. Its totient is φ = 539810853120.

The previous prime is 671161016663. The next prime is 671161016671. The reversal of 671161016669 is 966610161176.

It is a de Polignac number, because none of the positive numbers 2^k-671161016669 is a prime.

It is a super-2 number, since 2×671161016669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671161016663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592142 + ... + 1301135.

It is an arithmetic number, because the mean of its divisors is an integer number (25684209348).

Almost surely, 2^671161016669 is an apocalyptic number.

It is an amenable number.

671161016669 is a deficient number, since it is larger than the sum of its proper divisors (150733682467).

671161016669 is a wasteful number, since it uses less digits than its factorization.

671161016669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893405.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 671161016669 in words is "six hundred seventy-one billion, one hundred sixty-one million, sixteen thousand, six hundred sixty-nine".