17561341057 has 8 divisors (see below), whose sum is σ = 19222250600. Its totient is φ = 15944722560.

The previous prime is 17561341019. The next prime is 17561341111. The reversal of 17561341057 is 75014316571.

It can be written as a sum of positive squares in 4 ways, for example, as 582208641 + 16979132416 = 24129^2 + 130304^2 .

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

It is not a de Polignac number, because 17561341057 - 2¹¹ = 17561339009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17561341157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11071932 + ... + 11073517.

It is an arithmetic number, because the mean of its divisors is an integer number (2402781325).

Almost surely, 2^17561341057 is an apocalyptic number.

It is an amenable number.

17561341057 is a deficient number, since it is larger than the sum of its proper divisors (1660909543).

17561341057 is a wasteful number, since it uses less digits than its factorization.

17561341057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22145523.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 17561341057 in words is "seventeen billion, five hundred sixty-one million, three hundred forty-one thousand, fifty-seven".