65416420532 has 24 divisors (see below), whose sum is σ = 118432028232. Its totient is φ = 31594496000.

The previous prime is 65416420513. The next prime is 65416420547. The reversal of 65416420532 is 23502461456.

It can be written as a sum of positive squares in 4 ways, for example, as 3033365776 + 62383054756 = 55076^2 + 249766^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958093 + ... + 1991220.

It is an arithmetic number, because the mean of its divisors is an integer number (4934667843).

Almost surely, 2^65416420532 is an apocalyptic number.

It is an amenable number.

65416420532 is a deficient number, since it is larger than the sum of its proper divisors (53015607700).

65416420532 is a wasteful number, since it uses less digits than its factorization.

65416420532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949459 (or 3949457 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 65416420532 its reverse (23502461456), we get a palindrome (88918881988).

The spelling of 65416420532 in words is "sixty-five billion, four hundred sixteen million, four hundred twenty thousand, five hundred thirty-two".