16641747546 has 16 divisors (see below), whose sum is σ = 34357156608. Its totient is φ = 5368305600.

The previous prime is 16641747539. The next prime is 16641747553. The reversal of 16641747546 is 64574714661.

It is an interprime number because it is at equal distance from previous prime (16641747539) and next prime (16641747553).

It is a super-2 number, since 2×16641747546² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 44735695 + ... + 44736066.

It is an arithmetic number, because the mean of its divisors is an integer number (2147322288).

Almost surely, 2^16641747546 is an apocalyptic number.

16641747546 is an abundant number, since it is smaller than the sum of its proper divisors (17715409062).

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

16641747546 is a wasteful number, since it uses less digits than its factorization.

16641747546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89471797.

The product of its digits is 3386880, while the sum is 51.

The spelling of 16641747546 in words is "sixteen billion, six hundred forty-one million, seven hundred forty-seven thousand, five hundred forty-six".