662578601 has 4 divisors (see below), whose sum is σ = 662630400. Its totient is φ = 662526804.

The previous prime is 662578591. The next prime is 662578607. The reversal of 662578601 is 106875266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 662578601 - 2¹⁰ = 662577577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662578607) 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 3 ways as a sum of consecutive naturals, for example, 8660 + ... + 37418.

It is an arithmetic number, because the mean of its divisors is an integer number (165657600).

Almost surely, 2^662578601 is an apocalyptic number.

It is an amenable number.

662578601 is a deficient number, since it is larger than the sum of its proper divisors (51799).

662578601 is a wasteful number, since it uses less digits than its factorization.

662578601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51798.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 662578601 is about 25740.6021879831. The cubic root of 662578601 is about 871.7911752181.

The spelling of 662578601 in words is "six hundred sixty-two million, five hundred seventy-eight thousand, six hundred one".