6615510600551 has 4 divisors (see below), whose sum is σ = 6615517545600. Its totient is φ = 6615503655504.

The previous prime is 6615510600533. The next prime is 6615510600553. The reversal of 6615510600551 is 1550060155166.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6615510600551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6615510600499 and 6615510600508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615510600553) 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 3 ways as a sum of consecutive naturals, for example, 1763246 + ... + 4042283.

It is an arithmetic number, because the mean of its divisors is an integer number (1653879386400).

Almost surely, 2^{6615510600551} is an apocalyptic number.

6615510600551 is a deficient number, since it is larger than the sum of its proper divisors (6945049).

6615510600551 is a wasteful number, since it uses less digits than its factorization.

6615510600551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945048.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 6615510600551 in words is "six trillion, six hundred fifteen billion, five hundred ten million, six hundred thousand, five hundred fifty-one".