121164661443 has 8 divisors (see below), whose sum is σ = 184631865088. Its totient is φ = 69236949384.

The previous prime is 121164661441. The next prime is 121164661483. The reversal of 121164661443 is 344166461121.

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

It is not a de Polignac number, because 121164661443 - 2¹ = 121164661441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121164661441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2884872871 + ... + 2884872912.

It is an arithmetic number, because the mean of its divisors is an integer number (23078983136).

Almost surely, 2^121164661443 is an apocalyptic number.

121164661443 is a deficient number, since it is larger than the sum of its proper divisors (63467203645).

121164661443 is an equidigital number, since it uses as much as digits as its factorization.

121164661443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769745793.

The product of its digits is 82944, while the sum is 39.

The spelling of 121164661443 in words is "one hundred twenty-one billion, one hundred sixty-four million, six hundred sixty-one thousand, four hundred forty-three".