6650150101661 has 16 divisors (see below), whose sum is σ = 7433077122240. Its totient is φ = 5897316741120.

The previous prime is 6650150101627. The next prime is 6650150101733. The reversal of 6650150101661 is 1661010510566.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6650150101661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650150101061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8777690 + ... + 9505163.

It is an arithmetic number, because the mean of its divisors is an integer number (464567320140).

Almost surely, 2^{6650150101661} is an apocalyptic number.

It is an amenable number.

6650150101661 is a deficient number, since it is larger than the sum of its proper divisors (782927020579).

6650150101661 is a wasteful number, since it uses less digits than its factorization.

6650150101661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18283676.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 6650150101661 in words is "six trillion, six hundred fifty billion, one hundred fifty million, one hundred one thousand, six hundred sixty-one".