6670621115 has 16 divisors (see below), whose sum is σ = 8355080448. Its totient is φ = 5103068256.

The previous prime is 6670621079. The next prime is 6670621117. The reversal of 6670621115 is 5111260766.

It is a cyclic number.

It is not a de Polignac number, because 6670621115 - 2⁶ = 6670621051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6670621117) 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 15 ways as a sum of consecutive naturals, for example, 634532 + ... + 644958.

It is an arithmetic number, because the mean of its divisors is an integer number (522192528).

Almost surely, 2^6670621115 is an apocalyptic number.

6670621115 is a deficient number, since it is larger than the sum of its proper divisors (1684459333).

6670621115 is a wasteful number, since it uses less digits than its factorization.

6670621115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16018.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 6670621115 is about 81673.8704543871. The cubic root of 6670621115 is about 1882.4441120439. Note that the first 3 decimals are identical.

The spelling of 6670621115 in words is "six billion, six hundred seventy million, six hundred twenty-one thousand, one hundred fifteen".