5311665997 has 16 divisors (see below), whose sum is σ = 6139627200. Its totient is φ = 4541610240.

The previous prime is 5311665979. The next prime is 5311666007. The reversal of 5311665997 is 7995661135.

It is a cyclic number.

It is not a de Polignac number, because 5311665997 - 2¹¹ = 5311663949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311665917) 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, 286279 + ... + 304267.

It is an arithmetic number, because the mean of its divisors is an integer number (383726700).

Almost surely, 2^5311665997 is an apocalyptic number.

It is an amenable number.

5311665997 is a deficient number, since it is larger than the sum of its proper divisors (827961203).

5311665997 is a wasteful number, since it uses less digits than its factorization.

5311665997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19596.

The product of its digits is 1530900, while the sum is 52.

The square root of 5311665997 is about 72881.1772476268. The cubic root of 5311665997 is about 1744.7916979186.

The spelling of 5311665997 in words is "five billion, three hundred eleven million, six hundred sixty-five thousand, nine hundred ninety-seven".