511020006601 has 16 divisors (see below), whose sum is σ = 561035087424. Its totient is φ = 462544565184.

The previous prime is 511020006587. The next prime is 511020006649. The reversal of 511020006601 is 106600020115.

It is not a de Polignac number, because 511020006601 - 2²⁷ = 510885788873 is a prime.

It is a super-2 number, since 2×511020006601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511020006671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991410 + ... + 1415956.

It is an arithmetic number, because the mean of its divisors is an integer number (35064692964).

Almost surely, 2^511020006601 is an apocalyptic number.

It is an amenable number.

511020006601 is a deficient number, since it is larger than the sum of its proper divisors (50015080823).

511020006601 is a wasteful number, since it uses less digits than its factorization.

511020006601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426360.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 511020006601 its reverse (106600020115), we get a palindrome (617620026716).

The spelling of 511020006601 in words is "five hundred eleven billion, twenty million, six thousand, six hundred one".