121560167056 has 20 divisors (see below), whose sum is σ = 235727483904. Its totient is φ = 60727268000.

The previous prime is 121560167039. The next prime is 121560167093. The reversal of 121560167056 is 650761065121.

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 3 ways as a sum of consecutive naturals, for example, 3281980 + ... + 3318811.

Almost surely, 2^121560167056 is an apocalyptic number.

121560167056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121560167056 is a deficient number, since it is larger than the sum of its proper divisors (114167316848).

121560167056 is a wasteful number, since it uses less digits than its factorization.

121560167056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601950 (or 6601944 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 121560167056 in words is "one hundred twenty-one billion, five hundred sixty million, one hundred sixty-seven thousand, fifty-six".