16510061616 has 40 divisors (see below), whose sum is σ = 42729033024. Its totient is φ = 5493284160.

The previous prime is 16510061611. The next prime is 16510061621. The reversal of 16510061616 is 61616001561.

It is an interprime number because it is at equal distance from previous prime (16510061611) and next prime (16510061621).

It is not an unprimeable number, because it can be changed into a prime (16510061611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288150 + ... + 340661.

Almost surely, 2^16510061616 is an apocalyptic number.

16510061616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16510061616 is an abundant number, since it is smaller than the sum of its proper divisors (26218971408).

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

16510061616 is a wasteful number, since it uses less digits than its factorization.

16510061616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629369 (or 629363 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 16510061616 in words is "sixteen billion, five hundred ten million, sixty-one thousand, six hundred sixteen".