5840385661 has 16 divisors (see below), whose sum is σ = 6937934400. Its totient is φ = 4856544000.

The previous prime is 5840385641. The next prime is 5840385667. The reversal of 5840385661 is 1665830485.

It is not a de Polignac number, because 5840385661 - 2⁹ = 5840385149 is a prime.

It is a super-2 number, since 2×5840385661² = 68220209338428813842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5840385667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475740 + ... + 487861.

It is an arithmetic number, because the mean of its divisors is an integer number (433620900).

Almost surely, 2^5840385661 is an apocalyptic number.

It is an amenable number.

5840385661 is a deficient number, since it is larger than the sum of its proper divisors (1097548739).

5840385661 is a wasteful number, since it uses less digits than its factorization.

5840385661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963660.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 5840385661 is about 76422.4159589318. The cubic root of 5840385661 is about 1800.8623091608.

The spelling of 5840385661 in words is "five billion, eight hundred forty million, three hundred eighty-five thousand, six hundred sixty-one".