668357035 has 8 divisors (see below), whose sum is σ = 803570976. Its totient is φ = 533657280.

The previous prime is 668357033. The next prime is 668357051. The reversal of 668357035 is 530753866.

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

It is not a de Polignac number, because 668357035 - 2¹ = 668357033 is a prime.

It is a super-2 number, since 2×668357035² = 893402252467982450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668356982 and 668357000.

It is not an unprimeable number, because it can be changed into a prime (668357033) 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 7 ways as a sum of consecutive naturals, for example, 125679 + ... + 130888.

It is an arithmetic number, because the mean of its divisors is an integer number (100446372).

Almost surely, 2^668357035 is an apocalyptic number.

668357035 is a deficient number, since it is larger than the sum of its proper divisors (135213941).

668357035 is a wasteful number, since it uses less digits than its factorization.

668357035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257093.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 668357035 is about 25852.6020934064. The cubic root of 668357035 is about 874.3181779607.

The spelling of 668357035 in words is "six hundred sixty-eight million, three hundred fifty-seven thousand, thirty-five".