16161000501 has 16 divisors (see below), whose sum is σ = 21686788800. Its totient is φ = 10704709248.

The previous prime is 16161000497. The next prime is 16161000523. The reversal of 16161000501 is 10500016161.

It is not a de Polignac number, because 16161000501 - 2² = 16161000497 is a prime.

It is a super-2 number, since 2×16161000501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161000701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652105 + ... + 676433.

It is an arithmetic number, because the mean of its divisors is an integer number (1355424300).

Almost surely, 2^16161000501 is an apocalyptic number.

It is an amenable number.

16161000501 is a deficient number, since it is larger than the sum of its proper divisors (5525788299).

16161000501 is a wasteful number, since it uses less digits than its factorization.

16161000501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 16161000501 its reverse (10500016161), we get a palindrome (26661016662).

The spelling of 16161000501 in words is "sixteen billion, one hundred sixty-one million, five hundred one", and thus it is an aban number.