6615020901 has 48 divisors (see below), whose sum is σ = 9552291840. Its totient is φ = 4066950720.

The previous prime is 6615020851. The next prime is 6615020927. The reversal of 6615020901 is 1090205166.

It is not a de Polignac number, because 6615020901 - 2¹³ = 6615012709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615020101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6491170 + ... + 6492188.

It is an arithmetic number, because the mean of its divisors is an integer number (199006080).

Almost surely, 2^6615020901 is an apocalyptic number.

It is an amenable number.

6615020901 is a deficient number, since it is larger than the sum of its proper divisors (2937270939).

6615020901 is a wasteful number, since it uses less digits than its factorization.

6615020901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 6615020901 is about 81332.7787610875. The cubic root of 6615020901 is about 1877.1994007883.

The spelling of 6615020901 in words is "six billion, six hundred fifteen million, twenty thousand, nine hundred one".