121560177160 has 32 divisors (see below), whose sum is σ = 273565626840. Its totient is φ = 48614252544.

The previous prime is 121560177127. The next prime is 121560177199. The reversal of 121560177160 is 61771065121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95789012004 + 25771165156 = 309498^2 + 160534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104607 + ... + 504046.

Almost surely, 2^121560177160 is an apocalyptic number.

121560177160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121560177160 is an abundant number, since it is smaller than the sum of its proper divisors (152005449680).

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

121560177160 is a wasteful number, since it uses less digits than its factorization.

121560177160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613657 (or 613653 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 121560177160 in words is "one hundred twenty-one billion, five hundred sixty million, one hundred seventy-seven thousand, one hundred sixty".