16506423542 has 8 divisors (see below), whose sum is σ = 28296726096. Its totient is φ = 7074181512.

The previous prime is 16506423541. The next prime is 16506423589. The reversal of 16506423542 is 24532460561.

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

It is a junction number, because it is equal to n+sod(n) for n = 16506423496 and 16506423505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506423541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589515113 + ... + 589515140.

It is an arithmetic number, because the mean of its divisors is an integer number (3537090762).

Almost surely, 2^16506423542 is an apocalyptic number.

16506423542 is a deficient number, since it is larger than the sum of its proper divisors (11790302554).

16506423542 is a wasteful number, since it uses less digits than its factorization.

16506423542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179030262.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 16506423542 in words is "sixteen billion, five hundred six million, four hundred twenty-three thousand, five hundred forty-two".