5406660899 has 12 divisors (see below), whose sum is σ = 5692692600. Its totient is φ = 5134313184.

The previous prime is 5406660893. The next prime is 5406661009. The reversal of 5406660899 is 9980666045.

It is a Cunningham number, because it is equal to 73530²-1.

It is not a de Polignac number, because 5406660899 - 2⁸ = 5406660643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5406660899.

It is not an unprimeable number, because it can be changed into a prime (5406660893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36767 + ... + 110295.

It is an arithmetic number, because the mean of its divisors is an integer number (474391050).

Almost surely, 2^5406660899 is an apocalyptic number.

5406660899 is a deficient number, since it is larger than the sum of its proper divisors (286031701).

5406660899 is a wasteful number, since it uses less digits than its factorization.

5406660899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73714 (or 73691 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The square root of 5406660899 is about 73529.9999932001. Note that the first 5 decimals coincide. The cubic root of 5406660899 is about 1755.1317016014.

The spelling of 5406660899 in words is "five billion, four hundred six million, six hundred sixty thousand, eight hundred ninety-nine".