16802763840 has 504 divisors, whose sum is σ = 61713270528. Its totient is φ = 4190883840.

The previous prime is 16802763797. The next prime is 16802763877. The reversal of 16802763840 is 4836720861.

16802763840 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 2 + 7 + 638 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 250787487 + ... + 250787553.

Almost surely, 2^16802763840 is an apocalyptic number.

16802763840 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 16802763840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30856635264).

16802763840 is an abundant number, since it is smaller than the sum of its proper divisors (44910506688).

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

16802763840 is a wasteful number, since it uses less digits than its factorization.

16802763840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 16802763840 in words is "sixteen billion, eight hundred two million, seven hundred sixty-three thousand, eight hundred forty".