6612021870 has 32 divisors (see below), whose sum is σ = 15896396448. Its totient is φ = 1760145408.

The previous prime is 6612021851. The next prime is 6612021877. The reversal of 6612021870 is 781202166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612021877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173679 + ... + 208298.

It is an arithmetic number, because the mean of its divisors is an integer number (496762389).

Almost surely, 2^6612021870 is an apocalyptic number.

6612021870 is an abundant number, since it is smaller than the sum of its proper divisors (9284374578).

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

6612021870 is a wasteful number, since it uses less digits than its factorization.

6612021870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382564.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 6612021870 is about 81314.3398792611. The cubic root of 6612021870 is about 1876.9156712643.

It can be divided in two parts, 66120 and 21870, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 6612021870 in words is "six billion, six hundred twelve million, twenty-one thousand, eight hundred seventy".