601395597009 has 9 divisors (see below), whose sum is σ = 868685889513. Its totient is φ = 400928847012.

The previous prime is 601395597001. The next prime is 601395597041. The reversal of 601395597009 is 900795593106.

The square root of 601395597009 is 775497.

It is a perfect power (a square), and thus also a powerful number.

601395597009 is a `hidden beast` number, since 6 + 0 + 13 + 9 + 559 + 70 + 0 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 601395597009 - 2³ = 601395597001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (601395597001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2197242 + ... + 2455740.

Almost surely, 2^601395597009 is an apocalyptic number.

601395597009 is the 775497-th square number.

601395597009 is the 387749-th centered octagonal number.

It is an amenable number.

601395597009 is a deficient number, since it is larger than the sum of its proper divisors (267290292504).

601395597009 is an frugal number, since it uses more digits than its factorization.

601395597009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517004 (or 258502 counting only the distinct ones).

The product of its (nonzero) digits is 2296350, while the sum is 54.

The spelling of 601395597009 in words is "six hundred one billion, three hundred ninety-five million, five hundred ninety-seven thousand, nine".