15015005505055 has 8 divisors (see below), whose sum is σ = 18018085511952. Its totient is φ = 12011951800128.

The previous prime is 15015005505053. The next prime is 15015005505119. The reversal of 15015005505055 is 55050550051051.

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 15015005505055 - 2¹ = 15015005505053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15015005505053) 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, 5296977 + ... + 7621546.

It is an arithmetic number, because the mean of its divisors is an integer number (2252260688994).

Almost surely, 2^{15015005505055} is an apocalyptic number.

15015005505055 is a deficient number, since it is larger than the sum of its proper divisors (3003080006897).

15015005505055 is a wasteful number, since it uses less digits than its factorization.

15015005505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13150985.

The product of its (nonzero) digits is 78125, while the sum is 37.

The spelling of 15015005505055 in words is "fifteen trillion, fifteen billion, five million, five hundred five thousand, fifty-five".