6358016661 has 16 divisors (see below), whose sum is σ = 8861322624. Its totient is φ = 4047335424.

The previous prime is 6358016647. The next prime is 6358016669. The reversal of 6358016661 is 1666108536.

6358016661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6358016661 - 2⁵ = 6358016629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6358016669) 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, 40036 + ... + 119661.

It is an arithmetic number, because the mean of its divisors is an integer number (553832664).

Almost surely, 2^6358016661 is an apocalyptic number.

It is an amenable number.

6358016661 is a deficient number, since it is larger than the sum of its proper divisors (2503305963).

6358016661 is a wasteful number, since it uses less digits than its factorization.

6358016661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160300.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 6358016661 is about 79737.1723915515. The cubic root of 6358016661 is about 1852.5668445923.

The spelling of 6358016661 in words is "six billion, three hundred fifty-eight million, sixteen thousand, six hundred sixty-one".