667377203241074 has 4 divisors (see below), whose sum is σ = 1001065804861614. Its totient is φ = 333688601620536.

The previous prime is 667377203241061. The next prime is 667377203241107. The reversal of 667377203241074 is 470142302773766.

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., 667303331806225 + 73871434849 = 25832215^2 + 271793^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166844300810267 + ... + 166844300810270.

Almost surely, 2^{667377203241074} is an apocalyptic number.

667377203241074 is a deficient number, since it is larger than the sum of its proper divisors (333688601620540).

667377203241074 is a wasteful number, since it uses less digits than its factorization.

667377203241074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333688601620539.

The product of its (nonzero) digits is 49787136, while the sum is 59.

The spelling of 667377203241074 in words is "six hundred sixty-seven trillion, three hundred seventy-seven billion, two hundred three million, two hundred forty-one thousand, seventy-four".