511061010061 has 16 divisors (see below), whose sum is σ = 591321435264. Its totient is φ = 432617347584.

The previous prime is 511061010041. The next prime is 511061010071. The reversal of 511061010061 is 160010160115.

It is a cyclic number.

It is not a de Polignac number, because 511061010061 - 2⁵ = 511061010029 is a prime.

It is a super-2 number, since 2×511061010061² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511061010041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455061 + ... + 1771813.

It is an arithmetic number, because the mean of its divisors is an integer number (36957589704).

Almost surely, 2^511061010061 is an apocalyptic number.

It is an amenable number.

511061010061 is a deficient number, since it is larger than the sum of its proper divisors (80260425203).

511061010061 is a wasteful number, since it uses less digits than its factorization.

511061010061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319620.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 511061010061 its reverse (160010160115), we get a palindrome (671071170176).

The spelling of 511061010061 in words is "five hundred eleven billion, sixty-one million, ten thousand, sixty-one".