121662320360 has 128 divisors (see below), whose sum is σ = 333473760000. Its totient is φ = 38995390464.

The previous prime is 121662320359. The next prime is 121662320363. The reversal of 121662320360 is 63023266121.

It is not an unprimeable number, because it can be changed into a prime (121662320363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623471 + ... + 795009.

It is an arithmetic number, because the mean of its divisors is an integer number (2605263750).

Almost surely, 2^121662320360 is an apocalyptic number.

121662320360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121662320360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166736880000).

121662320360 is an abundant number, since it is smaller than the sum of its proper divisors (211811439640).

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

121662320360 is a wasteful number, since it uses less digits than its factorization.

121662320360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171723 (or 171719 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 121662320360 its reverse (63023266121), we get a palindrome (184685586481).

The spelling of 121662320360 in words is "one hundred twenty-one billion, six hundred sixty-two million, three hundred twenty thousand, three hundred sixty".