6556218970 has 64 divisors (see below), whose sum is σ = 13679124480. Its totient is φ = 2215960128.

The previous prime is 6556218953. The next prime is 6556218979. The reversal of 6556218970 is 798126556.

It is not an unprimeable number, because it can be changed into a prime (6556218979) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3595479 + ... + 3597301.

It is an arithmetic number, because the mean of its divisors is an integer number (213736320).

Almost surely, 2^6556218970 is an apocalyptic number.

6556218970 is an abundant number, since it is smaller than the sum of its proper divisors (7122905510).

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

6556218970 is a wasteful number, since it uses less digits than its factorization.

6556218970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 6556218970 is about 80970.4820906977. The cubic root of 6556218970 is about 1871.6206003361.

The spelling of 6556218970 in words is "six billion, five hundred fifty-six million, two hundred eighteen thousand, nine hundred seventy".