16520302416 has 40 divisors (see below), whose sum is σ = 42793780864. Its totient is φ = 5491756800.

The previous prime is 16520302399. The next prime is 16520302423. The reversal of 16520302416 is 61420302561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451285 + ... + 486516.

Almost surely, 2^16520302416 is an apocalyptic number.

16520302416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16520302416 is an abundant number, since it is smaller than the sum of its proper divisors (26273478448).

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

16520302416 is a wasteful number, since it uses less digits than its factorization.

16520302416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938179 (or 938173 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 16520302416 its reverse (61420302561), we get a palindrome (77940604977).

The spelling of 16520302416 in words is "sixteen billion, five hundred twenty million, three hundred two thousand, four hundred sixteen".