1477643996161 has 4 divisors (see below), whose sum is σ = 1478043687172. Its totient is φ = 1477244305152.

The previous prime is 1477643996149. The next prime is 1477643996183. The reversal of 1477643996161 is 1616993467741.

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

It can be written as a sum of positive squares in 2 ways, for example, as 889331985936 + 588312010225 = 943044^2 + 767015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1477643996161 - 2³⁷ = 1340205042689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1477643996093 and 1477643996102.

It is not an unprimeable number, because it can be changed into a prime (1477643996131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199839960 + ... + 199847353.

It is an arithmetic number, because the mean of its divisors is an integer number (369510921793).

Almost surely, 2^{1477643996161} is an apocalyptic number.

It is an amenable number.

1477643996161 is a deficient number, since it is larger than the sum of its proper divisors (399691011).

1477643996161 is an equidigital number, since it uses as much as digits as its factorization.

1477643996161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399691010.

The product of its digits is 41150592, while the sum is 64.

The spelling of 1477643996161 in words is "one trillion, four hundred seventy-seven billion, six hundred forty-three million, nine hundred ninety-six thousand, one hundred sixty-one".