121095906660 has 96 divisors (see below), whose sum is σ = 393122983680. Its totient is φ = 30888228096.

The previous prime is 121095906619. The next prime is 121095906671. The reversal of 121095906660 is 66609590121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 4862617 + ... + 4887456.

It is an arithmetic number, because the mean of its divisors is an integer number (4095031080).

Almost surely, 2^121095906660 is an apocalyptic number.

121095906660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121095906660 is an abundant number, since it is smaller than the sum of its proper divisors (272027077020).

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

121095906660 is a wasteful number, since it uses less digits than its factorization.

121095906660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750114 (or 9750106 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 121095906660 in words is "one hundred twenty-one billion, ninety-five million, nine hundred six thousand, six hundred sixty".