16506626541 has 8 divisors (see below), whose sum is σ = 22012635744. Its totient is φ = 11002517520.

The previous prime is 16506626503. The next prime is 16506626557. The reversal of 16506626541 is 14562660561.

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

It is not a de Polignac number, because 16506626541 - 2¹⁷ = 16506495469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16506626493 and 16506626502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506626501) 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, 454650 + ... + 489611.

It is an arithmetic number, because the mean of its divisors is an integer number (2751579468).

Almost surely, 2^16506626541 is an apocalyptic number.

It is an amenable number.

16506626541 is a deficient number, since it is larger than the sum of its proper divisors (5506009203).

16506626541 is an equidigital number, since it uses as much as digits as its factorization.

16506626541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950091.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 16506626541 in words is "sixteen billion, five hundred six million, six hundred twenty-six thousand, five hundred forty-one".