4134660520991 has 48 divisors (see below), whose sum is σ = 5781973938048. Its totient is φ = 2904819019200.

The previous prime is 4134660520973. The next prime is 4134660521051. The reversal of 4134660520991 is 1990250664314.

It is not a de Polignac number, because 4134660520991 - 2¹⁰ = 4134660519967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4134660520931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6560045 + ... + 7162646.

It is an arithmetic number, because the mean of its divisors is an integer number (120457790376).

Almost surely, 2^{4134660520991} is an apocalyptic number.

4134660520991 is a deficient number, since it is larger than the sum of its proper divisors (1647313417057).

4134660520991 is a wasteful number, since it uses less digits than its factorization.

4134660520991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13722772 (or 13722765 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 4134660520991 in words is "four trillion, one hundred thirty-four billion, six hundred sixty million, five hundred twenty thousand, nine hundred ninety-one".