161341598787 has 16 divisors (see below), whose sum is σ = 220964330400. Its totient is φ = 104640705792.

The previous prime is 161341598741. The next prime is 161341598791. The reversal of 161341598787 is 787895143161.

It is not a de Polignac number, because 161341598787 - 2⁷ = 161341598659 is a prime.

It is a super-2 number, since 2×161341598787² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161341598787.

It is not an unprimeable number, because it can be changed into a prime (161341598287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825589 + ... + 1002137.

It is an arithmetic number, because the mean of its divisors is an integer number (13810270650).

Almost surely, 2^161341598787 is an apocalyptic number.

161341598787 is a deficient number, since it is larger than the sum of its proper divisors (59622731613).

161341598787 is a wasteful number, since it uses less digits than its factorization.

161341598787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184822.

The product of its digits is 10160640, while the sum is 60.

The spelling of 161341598787 in words is "one hundred sixty-one billion, three hundred forty-one million, five hundred ninety-eight thousand, seven hundred eighty-seven".