161341050740 has 24 divisors (see below), whose sum is σ = 343457527560. Its totient is φ = 63652359168.

The previous prime is 161341050721. The next prime is 161341050791. The reversal of 161341050740 is 47050143161.

It can be written as a sum of positive squares in 4 ways, for example, as 4832196196 + 156508854544 = 69514^2 + 395612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161341050697 and 161341050706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55252325 + ... + 55255244.

It is an arithmetic number, because the mean of its divisors is an integer number (14310730315).

Almost surely, 2^161341050740 is an apocalyptic number.

161341050740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161341050740 is an abundant number, since it is smaller than the sum of its proper divisors (182116476820).

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

161341050740 is a wasteful number, since it uses less digits than its factorization.

161341050740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110507651 (or 110507649 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 161341050740 in words is "one hundred sixty-one billion, three hundred forty-one million, fifty thousand, seven hundred forty".