8145613220277 has 16 divisors (see below), whose sum is σ = 11701161153920. Its totient is φ = 5010586765632.

The previous prime is 8145613220267. The next prime is 8145613220321. The reversal of 8145613220277 is 7720223165418.

It is a happy number.

It is not a de Polignac number, because 8145613220277 - 2⁸ = 8145613220021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145613220267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43620073 + ... + 43806414.

It is an arithmetic number, because the mean of its divisors is an integer number (731322572120).

Almost surely, 2^{8145613220277} is an apocalyptic number.

It is an amenable number.

8145613220277 is a deficient number, since it is larger than the sum of its proper divisors (3555547933643).

8145613220277 is a wasteful number, since it uses less digits than its factorization.

8145613220277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87428892.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 8145613220277 in words is "eight trillion, one hundred forty-five billion, six hundred thirteen million, two hundred twenty thousand, two hundred seventy-seven".