5615666406 has 48 divisors (see below), whose sum is σ = 14723433504. Its totient is φ = 1510094592.

The previous prime is 5615666387. The next prime is 5615666417. The reversal of 5615666406 is 6046665165.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1308705 + ... + 1312988.

It is an arithmetic number, because the mean of its divisors is an integer number (306738198).

Almost surely, 2^5615666406 is an apocalyptic number.

5615666406 is an abundant number, since it is smaller than the sum of its proper divisors (9107767098).

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

5615666406 is a wasteful number, since it uses less digits than its factorization.

5615666406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621725 (or 2621722 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 5615666406 is about 74937.7502064213. The cubic root of 5615666406 is about 1777.4624455144.

The spelling of 5615666406 in words is "five billion, six hundred fifteen million, six hundred sixty-six thousand, four hundred six".