515550352132121 has 16 divisors (see below), whose sum is σ = 543653205762048. Its totient is φ = 488170338829200.

The previous prime is 515550352132117. The next prime is 515550352132139. The reversal of 515550352132121 is 121231253055515.

It is a cyclic number.

It is not a de Polignac number, because 515550352132121 - 2² = 515550352132117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515550352132171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43257035 + ... + 53872736.

It is an arithmetic number, because the mean of its divisors is an integer number (33978325360128).

Almost surely, 2^{515550352132121} is an apocalyptic number.

It is an amenable number.

515550352132121 is a deficient number, since it is larger than the sum of its proper divisors (28102853629927).

515550352132121 is a wasteful number, since it uses less digits than its factorization.

515550352132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97133492.

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 515550352132121 in words is "five hundred fifteen trillion, five hundred fifty billion, three hundred fifty-two million, one hundred thirty-two thousand, one hundred twenty-one".