16506105742 has 32 divisors (see below), whose sum is σ = 29130356160. Its totient is φ = 6866415360.

The previous prime is 16506105731. The next prime is 16506105743. The reversal of 16506105742 is 24750160561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506105743) 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 15 ways as a sum of consecutive naturals, for example, 180234 + ... + 255922.

It is an arithmetic number, because the mean of its divisors is an integer number (910323630).

Almost surely, 2^16506105742 is an apocalyptic number.

16506105742 is a deficient number, since it is larger than the sum of its proper divisors (12624250418).

16506105742 is a wasteful number, since it uses less digits than its factorization.

16506105742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76156.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 16506105742 in words is "sixteen billion, five hundred six million, one hundred five thousand, seven hundred forty-two".