121776331332466 has 4 divisors (see below), whose sum is σ = 182664496998702. Its totient is φ = 60888165666232.

The previous prime is 121776331332433. The next prime is 121776331332497. The reversal of 121776331332466 is 664233133677121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121723006824225 + 53324508241 = 11032815^2 + 230921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30444082833115 + ... + 30444082833118.

Almost surely, 2^{121776331332466} is an apocalyptic number.

121776331332466 is a deficient number, since it is larger than the sum of its proper divisors (60888165666236).

121776331332466 is an equidigital number, since it uses as much as digits as its factorization.

121776331332466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60888165666235.

The product of its digits is 13716864, while the sum is 55.

The spelling of 121776331332466 in words is "one hundred twenty-one trillion, seven hundred seventy-six billion, three hundred thirty-one million, three hundred thirty-two thousand, four hundred sixty-six".