161322610710 has 32 divisors (see below), whose sum is σ = 387188645472. Its totient is φ = 43017765120.

The previous prime is 161322610693. The next prime is 161322610711. The reversal of 161322610710 is 17016223161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161322610711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878490 + ... + 1046130.

It is an arithmetic number, because the mean of its divisors is an integer number (12099645171).

Almost surely, 2^161322610710 is an apocalyptic number.

161322610710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161322610710 is an abundant number, since it is smaller than the sum of its proper divisors (225866034762).

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

161322610710 is a wasteful number, since it uses less digits than its factorization.

161322610710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199728.

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 161322610710 its reverse (17016223161), we get a palindrome (178338833871).

The spelling of 161322610710 in words is "one hundred sixty-one billion, three hundred twenty-two million, six hundred ten thousand, seven hundred ten".