6650015601 has 4 divisors (see below), whose sum is σ = 8866687472. Its totient is φ = 4433343732.

The previous prime is 6650015591. The next prime is 6650015609. The reversal of 6650015601 is 1065100566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6650015601 - 2⁹ = 6650015089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650015609) 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 3 ways as a sum of consecutive naturals, for example, 1108335931 + ... + 1108335936.

It is an arithmetic number, because the mean of its divisors is an integer number (2216671868).

Almost surely, 2^6650015601 is an apocalyptic number.

It is an amenable number.

6650015601 is a deficient number, since it is larger than the sum of its proper divisors (2216671871).

6650015601 is a wasteful number, since it uses less digits than its factorization.

6650015601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216671870.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 6650015601 is about 81547.6278073127. The cubic root of 6650015601 is about 1880.5038261289.

The spelling of 6650015601 in words is "six billion, six hundred fifty million, fifteen thousand, six hundred one".