6340555620 has 144 divisors (see below), whose sum is σ = 23273647488. Its totient is φ = 1364014080.

The previous prime is 6340555591. The next prime is 6340555631. The reversal of 6340555620 is 265550436.

It is a happy number.

6340555620 is a `hidden beast` number, since 6 + 3 + 40 + 55 + 562 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126586 + ... + 169425.

It is an arithmetic number, because the mean of its divisors is an integer number (161622552).

Almost surely, 2^6340555620 is an apocalyptic number.

6340555620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6340555620 is an abundant number, since it is smaller than the sum of its proper divisors (16933091868).

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

6340555620 is a wasteful number, since it uses less digits than its factorization.

6340555620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296050 (or 296045 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 6340555620 is about 79627.6058914244. The cubic root of 6340555620 is about 1850.8693863620.

It can be divided in two parts, 63405 and 55620, that added together give a square (119025 = 345²).

The spelling of 6340555620 in words is "six billion, three hundred forty million, five hundred fifty-five thousand, six hundred twenty".