6550915591011 has 8 divisors (see below), whose sum is σ = 9528604496064. Its totient is φ = 3970251873320.

The previous prime is 6550915590991. The next prime is 6550915591021. The reversal of 6550915591011 is 1101955190556.

It is a happy number.

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 6550915591011 - 2¹⁹ = 6550915066723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6550915591021) 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, 99256296801 + ... + 99256296866.

It is an arithmetic number, because the mean of its divisors is an integer number (1191075562008).

Almost surely, 2^{6550915591011} is an apocalyptic number.

6550915591011 is a deficient number, since it is larger than the sum of its proper divisors (2977688905053).

6550915591011 is a wasteful number, since it uses less digits than its factorization.

6550915591011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198512593681.

The product of its (nonzero) digits is 303750, while the sum is 48.

The spelling of 6550915591011 in words is "six trillion, five hundred fifty billion, nine hundred fifteen million, five hundred ninety-one thousand, eleven".