16761110844425 has 12 divisors (see below), whose sum is σ = 21124495112076. Its totient is φ = 13189070827200.

The previous prime is 16761110844391. The next prime is 16761110844487. The reversal of 16761110844425 is 52444801116761.

It can be written as a sum of positive squares in 6 ways, for example, as 8823638552521 + 7937472291904 = 2970461^2 + 2817352^2 .

It is not a de Polignac number, because 16761110844425 - 2¹² = 16761110840329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5495444654 + ... + 5495447703.

It is an arithmetic number, because the mean of its divisors is an integer number (1760374592673).

Almost surely, 2^{16761110844425} is an apocalyptic number.

It is an amenable number.

16761110844425 is a deficient number, since it is larger than the sum of its proper divisors (4363384267651).

16761110844425 is a wasteful number, since it uses less digits than its factorization.

16761110844425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990892428 (or 10990892423 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 16761110844425 in words is "sixteen trillion, seven hundred sixty-one billion, one hundred ten million, eight hundred forty-four thousand, four hundred twenty-five".