1322168820736 has 33 divisors (see below), whose sum is σ = 2643120017881. Its totient is φ = 661066012672.

The previous prime is 1322168820701. The next prime is 1322168820781. The reversal of 1322168820736 is 6370288612231.

The square root of 1322168820736 is 1149856.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 941055206400 + 381113614336 = 970080^2 + 617344^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322168820736.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 36777426 + ... + 36813358.

Almost surely, 2^{1322168820736} is an apocalyptic number.

1322168820736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1322168820736 is the 1149856-th square number.

It is an amenable number.

1322168820736 is a deficient number, since it is larger than the sum of its proper divisors (1320951197145).

1322168820736 is an frugal number, since it uses more digits than its factorization.

1322168820736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71886 (or 35935 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

Multiplying 1322168820736 by its sum of digits (49), we get a square (64786272216064 = 8048992²).

The spelling of 1322168820736 in words is "one trillion, three hundred twenty-two billion, one hundred sixty-eight million, eight hundred twenty thousand, seven hundred thirty-six".