21961160762 has 16 divisors (see below), whose sum is σ = 34882309800. Its totient is φ = 10333828608.

The previous prime is 21961160761. The next prime is 21961160821. The reversal of 21961160762 is 26706116912.

It can be written as a sum of positive squares in 4 ways, for example, as 21720569641 + 240591121 = 147379^2 + 15511^2 .

It is not an unprimeable number, because it can be changed into a prime (21961160761) 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 7 ways as a sum of consecutive naturals, for example, 669038 + ... + 701094.

Almost surely, 2^21961160762 is an apocalyptic number.

21961160762 is a deficient number, since it is larger than the sum of its proper divisors (12921149038).

21961160762 is a wasteful number, since it uses less digits than its factorization.

21961160762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52225.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 21961160762 in words is "twenty-one billion, nine hundred sixty-one million, one hundred sixty thousand, seven hundred sixty-two".