5665001161 has 4 divisors (see below), whose sum is σ = 5667096592. Its totient is φ = 5662905732.

The previous prime is 5665001149. The next prime is 5665001231. The reversal of 5665001161 is 1611005665.

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 an emirpimes, since its reverse is a distinct semiprime: 1611005665 = 5 ⋅322201133.

It is a cyclic number.

It is not a de Polignac number, because 5665001161 - 2²³ = 5656612553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665001141) 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, 1043655 + ... + 1049068.

It is an arithmetic number, because the mean of its divisors is an integer number (1416774148).

Almost surely, 2^5665001161 is an apocalyptic number.

It is an amenable number.

5665001161 is a deficient number, since it is larger than the sum of its proper divisors (2095431).

5665001161 is a wasteful number, since it uses less digits than its factorization.

5665001161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095430.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 5665001161 is about 75266.2019833604. The cubic root of 5665001161 is about 1782.6523980861.

The spelling of 5665001161 in words is "five billion, six hundred sixty-five million, one thousand, one hundred sixty-one".