16880287788 has 384 divisors, whose sum is σ = 57306009600. Its totient is φ = 4175069184.

The previous prime is 16880287729. The next prime is 16880287789. The reversal of 16880287788 is 88778208861.

16880287788 = T₄₇₇ + T₄₇₈ + ... + T₄₆₆₂.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (16880287789) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11979628 + ... + 11981036.

It is an arithmetic number, because the mean of its divisors is an integer number (149234400).

Almost surely, 2^16880287788 is an apocalyptic number.

16880287788 is a gapful number since it is divisible by the number (18) 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 16880287788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28653004800).

16880287788 is an abundant number, since it is smaller than the sum of its proper divisors (40425721812).

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

16880287788 is a wasteful number, since it uses less digits than its factorization.

16880287788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 63.

The spelling of 16880287788 in words is "sixteen billion, eight hundred eighty million, two hundred eighty-seven thousand, seven hundred eighty-eight".