481662071568681 has 16 divisors (see below), whose sum is σ = 645136556703744. Its totient is φ = 319647998183184.

The previous prime is 481662071568673. The next prime is 481662071568707. The reversal of 481662071568681 is 186865170266184.

It is not a de Polignac number, because 481662071568681 - 2³ = 481662071568673 is a prime.

It is a super-2 number, since 2×481662071568681² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (481662071568581) 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, 11988921 + ... + 33272486.

It is an arithmetic number, because the mean of its divisors is an integer number (40321034793984).

Almost surely, 2^{481662071568681} is an apocalyptic number.

It is an amenable number.

481662071568681 is a deficient number, since it is larger than the sum of its proper divisors (163474485135063).

481662071568681 is a wasteful number, since it uses less digits than its factorization.

481662071568681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45277540.

The product of its (nonzero) digits is 185794560, while the sum is 69.

The spelling of 481662071568681 in words is "four hundred eighty-one trillion, six hundred sixty-two billion, seventy-one million, five hundred sixty-eight thousand, six hundred eighty-one".