16505252142 has 8 divisors (see below), whose sum is σ = 33010504296. Its totient is φ = 5501750712.

The previous prime is 16505252089. The next prime is 16505252167. The reversal of 16505252142 is 24125250561.

It is a sphenic number, since it is the product of 3 distinct primes.

16505252142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1375437673 + ... + 1375437684.

It is an arithmetic number, because the mean of its divisors is an integer number (4126313037).

Almost surely, 2^16505252142 is an apocalyptic number.

16505252142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16505252142 is a wasteful number, since it uses less digits than its factorization.

16505252142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750875362.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 16505252142 in words is "sixteen billion, five hundred five million, two hundred fifty-two thousand, one hundred forty-two".