6115151271551 has 4 divisors (see below), whose sum is σ = 6988744310352. Its totient is φ = 5241558232752.

The previous prime is 6115151271511. The next prime is 6115151271569. The reversal of 6115151271551 is 1551721515116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6115151271551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6115151271499 and 6115151271508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115151271511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436796519390 + ... + 436796519403.

It is an arithmetic number, because the mean of its divisors is an integer number (1747186077588).

Almost surely, 2^{6115151271551} is an apocalyptic number.

6115151271551 is a deficient number, since it is larger than the sum of its proper divisors (873593038801).

6115151271551 is an equidigital number, since it uses as much as digits as its factorization.

6115151271551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873593038800.

The product of its digits is 52500, while the sum is 41.

Adding to 6115151271551 its reverse (1551721515116), we get a palindrome (7666872786667).

The spelling of 6115151271551 in words is "six trillion, one hundred fifteen billion, one hundred fifty-one million, two hundred seventy-one thousand, five hundred fifty-one".