3669891164417 has 4 divisors (see below), whose sum is σ = 3670181218260. Its totient is φ = 3669601110576.

The previous prime is 3669891164413. The next prime is 3669891164449. The reversal of 3669891164417 is 7144611989663.

It is a Cunningham number, because it is equal to 1915696²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14487492496 + 3655403671921 = 120364^2 + 1911911^2 .

It is a cyclic number.

It is not a de Polignac number, because 3669891164417 - 2² = 3669891164413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3669891164413) 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, 145007942 + ... + 145033247.

It is an arithmetic number, because the mean of its divisors is an integer number (917545304565).

Almost surely, 2^{3669891164417} is an apocalyptic number.

It is an amenable number.

3669891164417 is a deficient number, since it is larger than the sum of its proper divisors (290053843).

3669891164417 is a wasteful number, since it uses less digits than its factorization.

3669891164417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290053842.

The product of its digits is 47029248, while the sum is 65.

The spelling of 3669891164417 in words is "three trillion, six hundred sixty-nine billion, eight hundred ninety-one million, one hundred sixty-four thousand, four hundred seventeen".