13220577737371 has 4 divisors (see below), whose sum is σ = 13444655326200. Its totient is φ = 12996500148544.

The previous prime is 13220577737369. The next prime is 13220577737413. The reversal of 13220577737371 is 17373777502231.

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

It is a cyclic number.

It is not a de Polignac number, because 13220577737371 - 2¹ = 13220577737369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220577777371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112038794326 + ... + 112038794443.

It is an arithmetic number, because the mean of its divisors is an integer number (3361163831550).

Almost surely, 2^{13220577737371} is an apocalyptic number.

13220577737371 is a deficient number, since it is larger than the sum of its proper divisors (224077588829).

13220577737371 is an equidigital number, since it uses as much as digits as its factorization.

13220577737371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224077588828.

The product of its (nonzero) digits is 9075780, while the sum is 55.

The spelling of 13220577737371 in words is "thirteen trillion, two hundred twenty billion, five hundred seventy-seven million, seven hundred thirty-seven thousand, three hundred seventy-one".