161231110702 has 8 divisors (see below), whose sum is σ = 247471007256. Its totient is φ = 78740774952.

The previous prime is 161231110699. The next prime is 161231110709. The reversal of 161231110702 is 207011132161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161231110709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937390093 + ... + 937390264.

It is an arithmetic number, because the mean of its divisors is an integer number (30933875907).

Almost surely, 2^161231110702 is an apocalyptic number.

161231110702 is a deficient number, since it is larger than the sum of its proper divisors (86239896554).

161231110702 is a wasteful number, since it uses less digits than its factorization.

161231110702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874780402.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 161231110702 its reverse (207011132161), we get a palindrome (368242242863).

The spelling of 161231110702 in words is "one hundred sixty-one billion, two hundred thirty-one million, one hundred ten thousand, seven hundred two".