6557001611 has 8 divisors (see below), whose sum is σ = 6792443904. Its totient is φ = 6323054760.

The previous prime is 6557001559. The next prime is 6557001613. The reversal of 6557001611 is 1161007556.

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 6557001611 - 2¹⁰ = 6557000587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6557001613) 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 7 ways as a sum of consecutive naturals, for example, 364931 + ... + 382476.

It is an arithmetic number, because the mean of its divisors is an integer number (849055488).

Almost surely, 2^6557001611 is an apocalyptic number.

6557001611 is a deficient number, since it is larger than the sum of its proper divisors (235442293).

6557001611 is a wasteful number, since it uses less digits than its factorization.

6557001611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747721.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 6557001611 is about 80975.3148249514. The cubic root of 6557001611 is about 1871.6950715490.

The spelling of 6557001611 in words is "six billion, five hundred fifty-seven million, one thousand, six hundred eleven".