161049050506 has 8 divisors (see below), whose sum is σ = 244976020704. Its totient is φ = 79390376940.

The previous prime is 161049050501. The next prime is 161049050507. The reversal of 161049050506 is 605050940161.

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

It is not an unprimeable number, because it can be changed into a prime (161049050501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567073980 + ... + 567074263.

It is an arithmetic number, because the mean of its divisors is an integer number (30622002588).

Almost surely, 2^161049050506 is an apocalyptic number.

161049050506 is a deficient number, since it is larger than the sum of its proper divisors (83926970198).

161049050506 is a wasteful number, since it uses less digits than its factorization.

161049050506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134148316.

The product of its (nonzero) digits is 32400, while the sum is 37.

Adding to 161049050506 its reverse (605050940161), we get a palindrome (766099990667).

The spelling of 161049050506 in words is "one hundred sixty-one billion, forty-nine million, fifty thousand, five hundred six".