161240503741 has 8 divisors (see below), whose sum is σ = 161773676064. Its totient is φ = 160708126320.

The previous prime is 161240503727. The next prime is 161240503771. The reversal of 161240503741 is 147305042161.

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

It is a cyclic number.

It is not a de Polignac number, because 161240503741 - 2¹⁵ = 161240470973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161240503697 and 161240503706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161240503771) 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, 209010 + ... + 605116.

It is an arithmetic number, because the mean of its divisors is an integer number (20221709508).

Almost surely, 2^161240503741 is an apocalyptic number.

It is an amenable number.

161240503741 is a deficient number, since it is larger than the sum of its proper divisors (533172323).

161240503741 is an equidigital number, since it uses as much as digits as its factorization.

161240503741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397451.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 161240503741 in words is "one hundred sixty-one billion, two hundred forty million, five hundred three thousand, seven hundred forty-one".