16945544010780 has 384 divisors, whose sum is σ = 67994664192000. Its totient is φ = 3399732725760.

The previous prime is 16945544010763. The next prime is 16945544010781. The reversal of 16945544010780 is 8701044554961.

16945544010780 is a `hidden beast` number, since 1 + 6 + 9 + 4 + 5 + 544 + 0 + 10 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945544010781) 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, 5820745 + ... + 8232384.

It is an arithmetic number, because the mean of its divisors is an integer number (177069438000).

Almost surely, 2^{16945544010780} is an apocalyptic number.

16945544010780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16945544010780 is an abundant number, since it is smaller than the sum of its proper divisors (51049120181220).

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

16945544010780 is a wasteful number, since it uses less digits than its factorization.

16945544010780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14053194 (or 14053186 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 16945544010780 in words is "sixteen trillion, nine hundred forty-five billion, five hundred forty-four million, ten thousand, seven hundred eighty".