6155066561 has 8 divisors (see below), whose sum is σ = 7184029440. Its totient is φ = 5163520608.

The previous prime is 6155066537. The next prime is 6155066573. The reversal of 6155066561 is 1656605516.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6155066561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6155066581) 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, 9353876 + ... + 9354533.

It is an arithmetic number, because the mean of its divisors is an integer number (898003680).

Almost surely, 2^6155066561 is an apocalyptic number.

It is an amenable number.

6155066561 is a deficient number, since it is larger than the sum of its proper divisors (1028962879).

6155066561 is a wasteful number, since it uses less digits than its factorization.

6155066561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18708463.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 6155066561 is about 78454.2322695213. The cubic root of 6155066561 is about 1832.6417856292.

The spelling of 6155066561 in words is "six billion, one hundred fifty-five million, sixty-six thousand, five hundred sixty-one".