6620615159 has 8 divisors (see below), whose sum is σ = 6909515232. Its totient is φ = 6331802400.

The previous prime is 6620615149. The next prime is 6620615219. The reversal of 6620615159 is 9515160266.

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

It is a cyclic number.

It is not a de Polignac number, because 6620615159 - 2⁴ = 6620615143 is a prime.

It is a super-3 number, since 3×6620615159³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620615129) 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 7 ways as a sum of consecutive naturals, for example, 168557 + ... + 204089.

It is an arithmetic number, because the mean of its divisors is an integer number (863689404).

Almost surely, 2^6620615159 is an apocalyptic number.

6620615159 is a deficient number, since it is larger than the sum of its proper divisors (288900073).

6620615159 is a wasteful number, since it uses less digits than its factorization.

6620615159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43657.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 6620615159 is about 81367.1626579175. The cubic root of 6620615159 is about 1877.7284280312.

The spelling of 6620615159 in words is "six billion, six hundred twenty million, six hundred fifteen thousand, one hundred fifty-nine".