6406686355 has 8 divisors (see below), whose sum is σ = 7739622000. Its totient is φ = 5090950176.

The previous prime is 6406686347. The next prime is 6406686367. The reversal of 6406686355 is 5536866046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6406686355 - 2³ = 6406686347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6406686299 and 6406686308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4299045 + ... + 4300534.

It is an arithmetic number, because the mean of its divisors is an integer number (967452750).

Almost surely, 2^6406686355 is an apocalyptic number.

6406686355 is a deficient number, since it is larger than the sum of its proper divisors (1332935645).

6406686355 is a wasteful number, since it uses less digits than its factorization.

6406686355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599733.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The square root of 6406686355 is about 80041.7788095692. The cubic root of 6406686355 is about 1857.2818773826.

The spelling of 6406686355 in words is "six billion, four hundred six million, six hundred eighty-six thousand, three hundred fifty-five".