2516423646 has 32 divisors (see below), whose sum is σ = 5541706368. Its totient is φ = 755423840.

The previous prime is 2516423639. The next prime is 2516423681. The reversal of 2516423646 is 6463246152.

It is a super-2 number, since 2×2516423646² = 12664775932295866632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171105 + ... + 185228.

It is an arithmetic number, because the mean of its divisors is an integer number (173178324).

Almost surely, 2^2516423646 is an apocalyptic number.

2516423646 is an abundant number, since it is smaller than the sum of its proper divisors (3025282722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516423646 is a wasteful number, since it uses less digits than its factorization.

2516423646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356456.

The product of its digits is 207360, while the sum is 39.

The square root of 2516423646 is about 50163.9676062410. The cubic root of 2516423646 is about 1360.1743659798.

Adding to 2516423646 its reverse (6463246152), we get a palindrome (8979669798).

The spelling of 2516423646 in words is "two billion, five hundred sixteen million, four hundred twenty-three thousand, six hundred forty-six".