6155515220227 has 4 divisors (see below), whose sum is σ = 6286483629216. Its totient is φ = 6024546811240.

The previous prime is 6155515220189. The next prime is 6155515220249. The reversal of 6155515220227 is 7220225155516.

It is a happy number.

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 6155515220227 - 2²³ = 6155506831619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6155515220297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65484204424 + ... + 65484204517.

It is an arithmetic number, because the mean of its divisors is an integer number (1571620907304).

Almost surely, 2^{6155515220227} is an apocalyptic number.

6155515220227 is a deficient number, since it is larger than the sum of its proper divisors (130968408989).

6155515220227 is a wasteful number, since it uses less digits than its factorization.

6155515220227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130968408988.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 6155515220227 in words is "six trillion, one hundred fifty-five billion, five hundred fifteen million, two hundred twenty thousand, two hundred twenty-seven".