5315666440 has 32 divisors (see below), whose sum is σ = 13668857280. Its totient is φ = 1822514112.

The previous prime is 5315666431. The next prime is 5315666449. The reversal of 5315666440 is 446665135.

It is an interprime number because it is at equal distance from previous prime (5315666431) and next prime (5315666449).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 5315666393 and 5315666402.

It is not an unprimeable number, because it can be changed into a prime (5315666449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9491982 + ... + 9492541.

It is an arithmetic number, because the mean of its divisors is an integer number (427151790).

Almost surely, 2^5315666440 is an apocalyptic number.

It is an amenable number.

5315666440 is an abundant number, since it is smaller than the sum of its proper divisors (8353190840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5315666440 is a wasteful number, since it uses less digits than its factorization.

5315666440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18984541 (or 18984537 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 5315666440 is about 72908.6170490155. The cubic root of 5315666440 is about 1745.2296137673.

The spelling of 5315666440 in words is "five billion, three hundred fifteen million, six hundred sixty-six thousand, four hundred forty".