10561632667 has 4 divisors (see below), whose sum is σ = 10670515576. Its totient is φ = 10452749760.

The previous prime is 10561632661. The next prime is 10561632671. The reversal of 10561632667 is 76623616501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10561632667 - 2²⁷ = 10427414939 is a prime.

It is a super-2 number, since 2×10561632667² (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 (10561632661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54441309 + ... + 54441502.

It is an arithmetic number, because the mean of its divisors is an integer number (2667628894).

Almost surely, 2^10561632667 is an apocalyptic number.

10561632667 is a deficient number, since it is larger than the sum of its proper divisors (108882909).

10561632667 is an equidigital number, since it uses as much as digits as its factorization.

10561632667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108882908.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 10561632667 in words is "ten billion, five hundred sixty-one million, six hundred thirty-two thousand, six hundred sixty-seven".