10000000561161 has 16 divisors (see below), whose sum is σ = 14555673458816. Its totient is φ = 6069547230336.

The previous prime is 10000000561157. The next prime is 10000000561181. The reversal of 10000000561161 is 16116500000001.

It is not a de Polignac number, because 10000000561161 - 2² = 10000000561157 is a prime.

It is a super-2 number, since 2×10000000561161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000000561181) 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, 1756231885 + ... + 1756237578.

It is an arithmetic number, because the mean of its divisors is an integer number (909729591176).

Almost surely, 2^{10000000561161} is an apocalyptic number.

It is an amenable number.

10000000561161 is a deficient number, since it is larger than the sum of its proper divisors (4555672897655).

10000000561161 is a wasteful number, since it uses less digits than its factorization.

10000000561161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512469552.

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

Adding to 10000000561161 its reverse (16116500000001), we get a palindrome (26116500561162).

The spelling of 10000000561161 in words is "ten trillion, five hundred sixty-one thousand, one hundred sixty-one".