16511477612 has 24 divisors (see below), whose sum is σ = 33026765856. Its totient is φ = 7075531008.

The previous prime is 16511477611. The next prime is 16511477629. The reversal of 16511477612 is 21677411561.

It is a happy number.

16511477612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16511477612.

It is not an unprimeable number, because it can be changed into a prime (16511477611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256478 + ... + 314330.

It is an arithmetic number, because the mean of its divisors is an integer number (1376115244).

Almost surely, 2^16511477612 is an apocalyptic number.

It is an amenable number.

16511477612 is an abundant number, since it is smaller than the sum of its proper divisors (16515288244).

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

16511477612 is a wasteful number, since it uses less digits than its factorization.

16511477612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68057 (or 68055 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The spelling of 16511477612 in words is "sixteen billion, five hundred eleven million, four hundred seventy-seven thousand, six hundred twelve".