147645268565161 has 4 divisors (see below), whose sum is σ = 147649592413072. Its totient is φ = 147640944717252.

The previous prime is 147645268565101. The next prime is 147645268565177. The reversal of 147645268565161 is 161565862546741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147645268565161 - 2¹⁵ = 147645268532393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147645268565101) 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, 2161872735 + ... + 2161941028.

It is an arithmetic number, because the mean of its divisors is an integer number (36912398103268).

Almost surely, 2^{147645268565161} is an apocalyptic number.

It is an amenable number.

147645268565161 is a deficient number, since it is larger than the sum of its proper divisors (4323847911).

147645268565161 is an equidigital number, since it uses as much as digits as its factorization.

147645268565161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323847910.

The product of its digits is 290304000, while the sum is 67.

The spelling of 147645268565161 in words is "one hundred forty-seven trillion, six hundred forty-five billion, two hundred sixty-eight million, five hundred sixty-five thousand, one hundred sixty-one".