161210745116 has 24 divisors (see below), whose sum is σ = 287540714160. Its totient is φ = 79057302272.

The previous prime is 161210745107. The next prime is 161210745133. The reversal of 161210745116 is 611547012161.

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, 493700 + ... + 752436.

It is an arithmetic number, because the mean of its divisors is an integer number (11980863090).

Almost surely, 2^161210745116 is an apocalyptic number.

It is an amenable number.

161210745116 is a deficient number, since it is larger than the sum of its proper divisors (126329969044).

161210745116 is a wasteful number, since it uses less digits than its factorization.

161210745116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261733 (or 261731 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

Adding to 161210745116 its reverse (611547012161), we get a palindrome (772757757277).

The spelling of 161210745116 in words is "one hundred sixty-one billion, two hundred ten million, seven hundred forty-five thousand, one hundred sixteen".