6156227565561 has 8 divisors (see below), whose sum is σ = 8209197510784. Its totient is φ = 4103704665360.

The previous prime is 6156227565479. The next prime is 6156227565583. The reversal of 6156227565561 is 1655657226516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6156227565561 - 2¹³ = 6156227557369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6156227565461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111729121 + ... + 111784206.

It is an arithmetic number, because the mean of its divisors is an integer number (1026149688848).

Almost surely, 2^{6156227565561} is an apocalyptic number.

It is an amenable number.

6156227565561 is a deficient number, since it is larger than the sum of its proper divisors (2052969945223).

6156227565561 is a wasteful number, since it uses less digits than its factorization.

6156227565561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223522511.

The product of its digits is 22680000, while the sum is 57.

The spelling of 6156227565561 in words is "six trillion, one hundred fifty-six billion, two hundred twenty-seven million, five hundred sixty-five thousand, five hundred sixty-one".