16780443342 has 32 divisors (see below), whose sum is σ = 36178064160. Its totient is φ = 5158131840.

The previous prime is 16780443341. The next prime is 16780443343. The reversal of 16780443342 is 24334408761.

It is an interprime number because it is at equal distance from previous prime (16780443341) and next prime (16780443343).

It is a junction number, because it is equal to n+sod(n) for n = 16780443294 and 16780443303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780443341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25717 + ... + 184992.

It is an arithmetic number, because the mean of its divisors is an integer number (1130564505).

Almost surely, 2^16780443342 is an apocalyptic number.

16780443342 is an abundant number, since it is smaller than the sum of its proper divisors (19397620818).

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

16780443342 is a wasteful number, since it uses less digits than its factorization.

16780443342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211748.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 16780443342 in words is "sixteen billion, seven hundred eighty million, four hundred forty-three thousand, three hundred forty-two".