7169022961561 has 4 divisors (see below), whose sum is σ = 7590730194612. Its totient is φ = 6747315728512.

The previous prime is 7169022961531. The next prime is 7169022961571. The reversal of 7169022961561 is 1651692209617.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2875673199961 + 4293349761600 = 1695781^2 + 2072040^2 .

It is a cyclic number.

It is not a de Polignac number, because 7169022961561 - 2⁹ = 7169022961049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7169022961531) 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, 210853616500 + ... + 210853616533.

It is an arithmetic number, because the mean of its divisors is an integer number (1897682548653).

Almost surely, 2^{7169022961561} is an apocalyptic number.

It is an amenable number.

7169022961561 is a deficient number, since it is larger than the sum of its proper divisors (421707233051).

7169022961561 is a wasteful number, since it uses less digits than its factorization.

7169022961561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421707233050.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 7169022961561 in words is "seven trillion, one hundred sixty-nine billion, twenty-two million, nine hundred sixty-one thousand, five hundred sixty-one".