16533015480 has 384 divisors, whose sum is σ = 59326525440. Its totient is φ = 3979008000.

The previous prime is 16533015479. The next prime is 16533015497. The reversal of 16533015480 is 8451033561.

16533015480 is a `hidden beast` number, since 165 + 3 + 3 + 0 + 15 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10523095 + ... + 10524665.

It is an arithmetic number, because the mean of its divisors is an integer number (154496160).

Almost surely, 2^16533015480 is an apocalyptic number.

16533015480 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 16533015480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29663262720).

16533015480 is an abundant number, since it is smaller than the sum of its proper divisors (42793509960).

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

16533015480 is a wasteful number, since it uses less digits than its factorization.

16533015480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 16533015480 in words is "sixteen billion, five hundred thirty-three million, fifteen thousand, four hundred eighty".