121667616050 has 24 divisors (see below), whose sum is σ = 236140975296. Its totient is φ = 46551087440.

The previous prime is 121667616029. The next prime is 121667616097. The reversal of 121667616050 is 50616766121.

It is a junction number, because it is equal to n+sod(n) for n = 121667615989 and 121667616007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52897814 + ... + 52900113.

It is an arithmetic number, because the mean of its divisors is an integer number (9839207304).

Almost surely, 2^121667616050 is an apocalyptic number.

121667616050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121667616050 is a deficient number, since it is larger than the sum of its proper divisors (114473359246).

121667616050 is a wasteful number, since it uses less digits than its factorization.

121667616050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105797962 (or 105797957 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 121667616050 in words is "one hundred twenty-one billion, six hundred sixty-seven million, six hundred sixteen thousand, fifty".