5166115061501 has 4 divisors (see below), whose sum is σ = 5166166787100. Its totient is φ = 5166063335904.

The previous prime is 5166115061489. The next prime is 5166115061551. The reversal of 5166115061501 is 1051605116615.

It is a happy number.

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 3901612562500 + 1264502499001 = 1975250^2 + 1124501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5166115061501 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 (5166115061551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25712696 + ... + 25912833.

It is an arithmetic number, because the mean of its divisors is an integer number (1291541696775).

Almost surely, 2^{5166115061501} is an apocalyptic number.

It is an amenable number.

5166115061501 is a deficient number, since it is larger than the sum of its proper divisors (51725599).

5166115061501 is a wasteful number, since it uses less digits than its factorization.

5166115061501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51725598.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 5166115061501 in words is "five trillion, one hundred sixty-six billion, one hundred fifteen million, sixty-one thousand, five hundred one".