121650605146 has 8 divisors (see below), whose sum is σ = 208543894560. Its totient is φ = 52135973628.

The previous prime is 121650605119. The next prime is 121650605147. The reversal of 121650605146 is 641506056121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121650605147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4344664456 + ... + 4344664483.

It is an arithmetic number, because the mean of its divisors is an integer number (26067986820).

Almost surely, 2^121650605146 is an apocalyptic number.

121650605146 is a deficient number, since it is larger than the sum of its proper divisors (86893289414).

121650605146 is an equidigital number, since it uses as much as digits as its factorization.

121650605146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8689328948.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 121650605146 in words is "one hundred twenty-one billion, six hundred fifty million, six hundred five thousand, one hundred forty-six".