1481335033561 has 4 divisors (see below), whose sum is σ = 1481376388624. Its totient is φ = 1481293678500.

The previous prime is 1481335033553. The next prime is 1481335033583. The reversal of 1481335033561 is 1653305331841.

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 1481335033561 - 2³ = 1481335033553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1481335033261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20623755 + ... + 20695456.

It is an arithmetic number, because the mean of its divisors is an integer number (370344097156).

Almost surely, 2^{1481335033561} is an apocalyptic number.

It is an amenable number.

1481335033561 is a deficient number, since it is larger than the sum of its proper divisors (41355063).

1481335033561 is an equidigital number, since it uses as much as digits as its factorization.

1481335033561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41355062.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1481335033561 in words is "one trillion, four hundred eighty-one billion, three hundred thirty-five million, thirty-three thousand, five hundred sixty-one".