121762112664 has 128 divisors (see below), whose sum is σ = 310243852800. Its totient is φ = 39818096640.

The previous prime is 121762112561. The next prime is 121762112713. The reversal of 121762112664 is 466211267121.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 239218042 + ... + 239218550.

It is an arithmetic number, because the mean of its divisors is an integer number (2423780100).

Almost surely, 2^121762112664 is an apocalyptic number.

It is an amenable number.

121762112664 is an abundant number, since it is smaller than the sum of its proper divisors (188481740136).

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

121762112664 is a wasteful number, since it uses less digits than its factorization.

121762112664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1309 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

Adding to 121762112664 its reverse (466211267121), we get a palindrome (587973379785).

The spelling of 121762112664 in words is "one hundred twenty-one billion, seven hundred sixty-two million, one hundred twelve thousand, six hundred sixty-four".