601020664 has 16 divisors (see below), whose sum is σ = 1135518120. Its totient is φ = 298215840.

The previous prime is 601020661. The next prime is 601020677. The reversal of 601020664 is 466020106.

It is a happy number.

It is a super-2 number, since 2×601020664² = 722451677110001792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601020661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285699 + ... + 287794.

Almost surely, 2^601020664 is an apocalyptic number.

It is an amenable number.

601020664 is a deficient number, since it is larger than the sum of its proper divisors (534497456).

601020664 is a wasteful number, since it uses less digits than its factorization.

601020664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573630 (or 573626 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 601020664 is about 24515.7227917106. The cubic root of 601020664 is about 843.9106506794.

The spelling of 601020664 in words is "six hundred one million, twenty thousand, six hundred sixty-four".