641116144977 has 96 divisors (see below), whose sum is σ = 1156662312960. Its totient is φ = 308289801600.

The previous prime is 641116144901. The next prime is 641116144993. The reversal of 641116144977 is 779441611146.

It is not a de Polignac number, because 641116144977 - 2¹⁸ = 641115882833 is a prime.

It is a super-2 number, since 2×641116144977² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641116144997) 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 95 ways as a sum of consecutive naturals, for example, 1634799 + ... + 1988667.

It is an arithmetic number, because the mean of its divisors is an integer number (12048565760).

Almost surely, 2^641116144977 is an apocalyptic number.

It is an amenable number.

641116144977 is a deficient number, since it is larger than the sum of its proper divisors (515546167983).

641116144977 is a wasteful number, since it uses less digits than its factorization.

641116144977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353955 (or 353944 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The spelling of 641116144977 in words is "six hundred forty-one billion, one hundred sixteen million, one hundred forty-four thousand, nine hundred seventy-seven".