6340557605 has 8 divisors (see below), whose sum is σ = 7650707064. Its totient is φ = 5044420800.

The previous prime is 6340557563. The next prime is 6340557673. The reversal of 6340557605 is 5067550436.

It can be written as a sum of positive squares in 4 ways, for example, as 11082241 + 6329475364 = 3329^2 + 79558^2 .

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

It is not a de Polignac number, because 6340557605 - 2¹⁰ = 6340556581 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3502166 + ... + 3503975.

It is an arithmetic number, because the mean of its divisors is an integer number (956338383).

Almost surely, 2^6340557605 is an apocalyptic number.

It is an amenable number.

6340557605 is a deficient number, since it is larger than the sum of its proper divisors (1310149459).

6340557605 is a wasteful number, since it uses less digits than its factorization.

6340557605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006327.

The product of its (nonzero) digits is 378000, while the sum is 41.

The square root of 6340557605 is about 79627.6183556936. The cubic root of 6340557605 is about 1850.8695795089.

The spelling of 6340557605 in words is "six billion, three hundred forty million, five hundred fifty-seven thousand, six hundred five".