16020171262542 has 16 divisors (see below), whose sum is σ = 32045770402560. Its totient is φ = 5339152441272.

The previous prime is 16020171262541. The next prime is 16020171262547. The reversal of 16020171262542 is 24526217102061.

It is a self number, because there is not a number n which added to its sum of digits gives 16020171262542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16020171262541) by changing a digit.

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, 226123192 + ... + 226194027.

It is an arithmetic number, because the mean of its divisors is an integer number (2002860650160).

Almost surely, 2^{16020171262542} is an apocalyptic number.

16020171262542 is an abundant number, since it is smaller than the sum of its proper divisors (16025599140018).

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

16020171262542 is a wasteful number, since it uses less digits than its factorization.

16020171262542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452323127.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 16020171262542 in words is "sixteen trillion, twenty billion, one hundred seventy-one million, two hundred sixty-two thousand, five hundred forty-two".