5515166207101 has 4 divisors (see below), whose sum is σ = 5533989300252. Its totient is φ = 5496343113952.

The previous prime is 5515166207087. The next prime is 5515166207123. The reversal of 5515166207101 is 1017026615155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5394930644601 + 120235562500 = 2322699^2 + 346750^2 .

It is a cyclic number.

It is not a de Polignac number, because 5515166207101 - 2⁷ = 5515166206973 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 (5515166207171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411546136 + ... + 9411546721.

It is an arithmetic number, because the mean of its divisors is an integer number (1383497325063).

Almost surely, 2^{5515166207101} is an apocalyptic number.

It is an amenable number.

5515166207101 is a deficient number, since it is larger than the sum of its proper divisors (18823093151).

5515166207101 is a wasteful number, since it uses less digits than its factorization.

5515166207101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823093150.

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 5515166207101 in words is "five trillion, five hundred fifteen billion, one hundred sixty-six million, two hundred seven thousand, one hundred one".