16199780001042 has 16 divisors (see below), whose sum is σ = 35344974547872. Its totient is φ = 4909024242720.

The previous prime is 16199780001023. The next prime is 16199780001079. The reversal of 16199780001042 is 24010008799161.

It is a junction number, because it is equal to n+sod(n) for n = 16199780000982 and 16199780001000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122725606003 + ... + 122725606134.

It is an arithmetic number, because the mean of its divisors is an integer number (2209060909242).

Almost surely, 2^{16199780001042} is an apocalyptic number.

16199780001042 is an abundant number, since it is smaller than the sum of its proper divisors (19145194546830).

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

16199780001042 is a wasteful number, since it uses less digits than its factorization.

16199780001042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245451212153.

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 16199780001042 in words is "sixteen trillion, one hundred ninety-nine billion, seven hundred eighty million, one thousand, forty-two".