666457034 has 32 divisors (see below), whose sum is σ = 1093824000. Its totient is φ = 303376320.

The previous prime is 666457013. The next prime is 666457037. The reversal of 666457034 is 430754666.

It is a junction number, because it is equal to n+sod(n) for n = 666456982 and 666457000.

It is not an unprimeable number, because it can be changed into a prime (666457037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173624 + ... + 177420.

It is an arithmetic number, because the mean of its divisors is an integer number (34182000).

Almost surely, 2^666457034 is an apocalyptic number.

666457034 is a deficient number, since it is larger than the sum of its proper divisors (427366966).

666457034 is a wasteful number, since it uses less digits than its factorization.

666457034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 666457034 is about 25815.8291364039. The cubic root of 666457034 is about 873.4888896359.

The spelling of 666457034 in words is "six hundred sixty-six million, four hundred fifty-seven thousand, thirty-four".