377666121 has 16 divisors (see below), whose sum is σ = 577071104. Its totient is φ = 215216784.

The previous prime is 377666117. The next prime is 377666131. The reversal of 377666121 is 121666773.

It is not a de Polignac number, because 377666121 - 2² = 377666117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 377666121.

It is not an unprimeable number, because it can be changed into a prime (377666131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16795 + ... + 32208.

It is an arithmetic number, because the mean of its divisors is an integer number (36066944).

Almost surely, 2^377666121 is an apocalyptic number.

It is an amenable number.

377666121 is a deficient number, since it is larger than the sum of its proper divisors (199404983).

377666121 is a wasteful number, since it uses less digits than its factorization.

377666121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49380.

The product of its digits is 63504, while the sum is 39.

The square root of 377666121 is about 19433.6337569689. The cubic root of 377666121 is about 722.8297340333.

The spelling of 377666121 in words is "three hundred seventy-seven million, six hundred sixty-six thousand, one hundred twenty-one".