5515006661507 has 8 divisors (see below), whose sum is σ = 6389205369696. Its totient is φ = 4662393106752.

The previous prime is 5515006661491. The next prime is 5515006661623. The reversal of 5515006661507 is 7051666005155.

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 5515006661507 - 2⁴ = 5515006661491 is a prime.

It is a super-2 number, since 2×5515006661507² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515000661507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5396287808 + ... + 5396288829.

It is an arithmetic number, because the mean of its divisors is an integer number (798650671212).

Almost surely, 2^{5515006661507} is an apocalyptic number.

5515006661507 is a deficient number, since it is larger than the sum of its proper divisors (874198708189).

5515006661507 is a wasteful number, since it uses less digits than its factorization.

5515006661507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792576717.

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 5515006661507 in words is "five trillion, five hundred fifteen billion, six million, six hundred sixty-one thousand, five hundred seven".