16477328980 has 96 divisors (see below), whose sum is σ = 40612320000. Its totient is φ = 5613019776.

The previous prime is 16477328963. The next prime is 16477329019. The reversal of 16477328980 is 8982377461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1069371 + ... + 1084669.

It is an arithmetic number, because the mean of its divisors is an integer number (423045000).

Almost surely, 2^16477328980 is an apocalyptic number.

16477328980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16477328980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20306160000).

16477328980 is an abundant number, since it is smaller than the sum of its proper divisors (24134991020).

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

16477328980 is a wasteful number, since it uses less digits than its factorization.

16477328980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486 (or 15470 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

It can be divided in two parts, 164773 and 28980, that added together give a triangular number (193753 = T₆₂₂).

The spelling of 16477328980 in words is "sixteen billion, four hundred seventy-seven million, three hundred twenty-eight thousand, nine hundred eighty".