2516751860261 has 8 divisors (see below), whose sum is σ = 2540351782080. Its totient is φ = 2493153399328.

The previous prime is 2516751860243. The next prime is 2516751860263. The reversal of 2516751860261 is 1620681576152.

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 2516751860261 - 2⁶ = 2516751860197 is a prime.

It is a super-2 number, since 2×2516751860261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516751860263) 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 7 ways as a sum of consecutive naturals, for example, 3264785 + ... + 3961353.

It is an arithmetic number, because the mean of its divisors is an integer number (317543972760).

Almost surely, 2^{2516751860261} is an apocalyptic number.

It is an amenable number.

2516751860261 is a deficient number, since it is larger than the sum of its proper divisors (23599921819).

2516751860261 is a wasteful number, since it uses less digits than its factorization.

2516751860261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730443.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 2516751860261 in words is "two trillion, five hundred sixteen billion, seven hundred fifty-one million, eight hundred sixty thousand, two hundred sixty-one".