521411650061 has 32 divisors (see below), whose sum is σ = 570058207488. Its totient is φ = 474982502400.

The previous prime is 521411650049. The next prime is 521411650063. The reversal of 521411650061 is 160056114125.

It is a de Polignac number, because none of the positive numbers 2^k-521411650061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521411650063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60184016 + ... + 60192678.

It is an arithmetic number, because the mean of its divisors is an integer number (17814318984).

Almost surely, 2^521411650061 is an apocalyptic number.

It is an amenable number.

521411650061 is a deficient number, since it is larger than the sum of its proper divisors (48646557427).

521411650061 is a wasteful number, since it uses less digits than its factorization.

521411650061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9461.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 521411650061 its reverse (160056114125), we get a palindrome (681467764186).

The spelling of 521411650061 in words is "five hundred twenty-one billion, four hundred eleven million, six hundred fifty thousand, sixty-one".