10163351561 has 6 divisors (see below), whose sum is σ = 11171287386. Its totient is φ = 9239410400.

The previous prime is 10163351509. The next prime is 10163351567. The reversal of 10163351561 is 16515336101.

It can be written as a sum of positive squares in only one way, i.e., 8327657536 + 1835694025 = 91256^2 + 42845^2 .

It is not a de Polignac number, because 10163351561 - 2¹⁰ = 10163350537 is a prime.

It is a super-2 number, since 2×10163351561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10163351567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41997200 + ... + 41997441.

It is an arithmetic number, because the mean of its divisors is an integer number (1861881231).

Almost surely, 2^10163351561 is an apocalyptic number.

10163351561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10163351561 is a deficient number, since it is larger than the sum of its proper divisors (1007935825).

10163351561 is an equidigital number, since it uses as much as digits as its factorization.

10163351561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83994663 (or 83994652 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

Adding to 10163351561 its reverse (16515336101), we get a palindrome (26678687662).

The spelling of 10163351561 in words is "ten billion, one hundred sixty-three million, three hundred fifty-one thousand, five hundred sixty-one".