2516156417 has 12 divisors (see below), whose sum is σ = 2673787140. Its totient is φ = 2359623168.

The previous prime is 2516156407. The next prime is 2516156437. The reversal of 2516156417 is 7146516152.

It can be written as a sum of positive squares in 2 ways, for example, as 1380196801 + 1135959616 = 37151^2 + 33704^2 .

It is not a de Polignac number, because 2516156417 - 2⁸ = 2516156161 is a prime.

It is a super-2 number, since 2×2516156417² = 12662086229620555778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516156407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2493209 + ... + 2494217.

It is an arithmetic number, because the mean of its divisors is an integer number (222815595).

Almost surely, 2^2516156417 is an apocalyptic number.

It is an amenable number.

2516156417 is a deficient number, since it is larger than the sum of its proper divisors (157630723).

2516156417 is an equidigital number, since it uses as much as digits as its factorization.

2516156417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 1409 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 2516156417 is about 50161.3039802595. The cubic root of 2516156417 is about 1360.1262168398.

The spelling of 2516156417 in words is "two billion, five hundred sixteen million, one hundred fifty-six thousand, four hundred seventeen".