6188401661 has 8 divisors (see below), whose sum is σ = 6674742144. Its totient is φ = 5703534000.

The previous prime is 6188401651. The next prime is 6188401673. The reversal of 6188401661 is 1661048816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6188401661 - 2¹⁴ = 6188385277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6188401651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359465 + ... + 376286.

It is an arithmetic number, because the mean of its divisors is an integer number (834342768).

Almost surely, 2^6188401661 is an apocalyptic number.

It is an amenable number.

6188401661 is a deficient number, since it is larger than the sum of its proper divisors (486340483).

6188401661 is a wasteful number, since it uses less digits than its factorization.

6188401661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736411.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 6188401661 is about 78666.3947375244. The cubic root of 6188401661 is about 1835.9442866134.

The spelling of 6188401661 in words is "six billion, one hundred eighty-eight million, four hundred one thousand, six hundred sixty-one".