6606621153 has 24 divisors (see below), whose sum is σ = 10492425216. Its totient is φ = 3972477600.

The previous prime is 6606621121. The next prime is 6606621193. The reversal of 6606621153 is 3511266066.

It is not a de Polignac number, because 6606621153 - 2⁵ = 6606621121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6606621193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250158 + ... + 275303.

It is an arithmetic number, because the mean of its divisors is an integer number (437184384).

Almost surely, 2^6606621153 is an apocalyptic number.

It is an amenable number.

6606621153 is a deficient number, since it is larger than the sum of its proper divisors (3885804063).

6606621153 is a wasteful number, since it uses less digits than its factorization.

6606621153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525605 (or 525602 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6606621153 is about 81281.1242109753. The cubic root of 6606621153 is about 1876.4045088333.

The spelling of 6606621153 in words is "six billion, six hundred six million, six hundred twenty-one thousand, one hundred fifty-three".