6660515151 has 48 divisors (see below), whose sum is σ = 10448495200. Its totient is φ = 4074188544.

The previous prime is 6660515129. The next prime is 6660515177. The reversal of 6660515151 is 1515150666.

It is not a de Polignac number, because 6660515151 - 2¹⁰ = 6660514127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660515101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1446585 + ... + 1451181.

Almost surely, 2^6660515151 is an apocalyptic number.

6660515151 is a deficient number, since it is larger than the sum of its proper divisors (3787980049).

6660515151 is a wasteful number, since it uses less digits than its factorization.

6660515151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 6660515151 is about 81611.9792126131. The cubic root of 6660515151 is about 1881.4929998339.

It can be divided in two parts, 6660515 and 151, that added together give a palindrome (6660666).

The spelling of 6660515151 in words is "six billion, six hundred sixty million, five hundred fifteen thousand, one hundred fifty-one".