3220723701376 has 16 divisors (see below), whose sum is σ = 6416285499090. Its totient is φ = 1610361850624.

The previous prime is 3220723701289. The next prime is 3220723701439. The reversal of 3220723701376 is 6731073270223.

It can be written as a sum of positive squares in only one way, i.e., 3219153640000 + 1570061376 = 1794200^2 + 39624^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×3220723701376² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12580951831 + ... + 12580952086.

Almost surely, 2^{3220723701376} is an apocalyptic number.

It is an amenable number.

3220723701376 is a deficient number, since it is larger than the sum of its proper divisors (3195561797714).

3220723701376 is an equidigital number, since it uses as much as digits as its factorization.

3220723701376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25161903931 (or 25161903919 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 43.

Adding to 3220723701376 its reverse (6731073270223), we get a palindrome (9951796971599).

The spelling of 3220723701376 in words is "three trillion, two hundred twenty billion, seven hundred twenty-three million, seven hundred one thousand, three hundred seventy-six".