1681300866413 has 4 divisors (see below), whose sum is σ = 1921486704480. Its totient is φ = 1441115028348.

The previous prime is 1681300866383. The next prime is 1681300866437. The reversal of 1681300866413 is 3146680031861.

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 1681300866413 - 2¹² = 1681300862317 is a prime.

It is a super-2 number, since 2×1681300866413² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681300866613) 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, 120092919023 + ... + 120092919036.

It is an arithmetic number, because the mean of its divisors is an integer number (480371676120).

Almost surely, 2^{1681300866413} is an apocalyptic number.

It is an amenable number.

1681300866413 is a deficient number, since it is larger than the sum of its proper divisors (240185838067).

1681300866413 is an equidigital number, since it uses as much as digits as its factorization.

1681300866413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240185838066.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 1681300866413 in words is "one trillion, six hundred eighty-one billion, three hundred million, eight hundred sixty-six thousand, four hundred thirteen".