5001000161 has 4 divisors (see below), whose sum is σ = 5001216000. Its totient is φ = 5000784324.

The previous prime is 5001000119. The next prime is 5001000167. The reversal of 5001000161 is 1610001005.

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.

It is a cyclic number.

It is not a de Polignac number, because 5001000161 - 2¹⁴ = 5000983777 is a prime.

It is a super-2 number, since 2×5001000161² = 50020005220644051842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5001000167) 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, 68321 + ... + 121118.

It is an arithmetic number, because the mean of its divisors is an integer number (1250304000).

Almost surely, 2^5001000161 is an apocalyptic number.

It is an amenable number.

5001000161 is a deficient number, since it is larger than the sum of its proper divisors (215839).

5001000161 is a wasteful number, since it uses less digits than its factorization.

5001000161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215838.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 5001000161 is about 70717.7499712767. The cubic root of 5001000161 is about 1710.0899558254.

Adding to 5001000161 its reverse (1610001005), we get a palindrome (6611001166).

The spelling of 5001000161 in words is "five billion, one million, one hundred sixty-one", and thus it is an aban number.