3220377653421 has 32 divisors (see below), whose sum is σ = 5053911955200. Its totient is φ = 2019693450240.

The previous prime is 3220377653359. The next prime is 3220377653453. The reversal of 3220377653421 is 1243567730223.

3220377653421 is a `hidden beast` number, since 3 + 2 + 20 + 3 + 7 + 76 + 534 + 21 = 666.

It is not a de Polignac number, because 3220377653421 - 2¹⁸ = 3220377391277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220377653021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631441 + ... + 2615238.

It is an arithmetic number, because the mean of its divisors is an integer number (157934748600).

Almost surely, 2^{3220377653421} is an apocalyptic number.

It is an amenable number.

3220377653421 is a deficient number, since it is larger than the sum of its proper divisors (1833534301779).

3220377653421 is a wasteful number, since it uses less digits than its factorization.

3220377653421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248866 (or 3248860 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

The spelling of 3220377653421 in words is "three trillion, two hundred twenty billion, three hundred seventy-seven million, six hundred fifty-three thousand, four hundred twenty-one".