66100060532 has 18 divisors (see below), whose sum is σ = 127147018194. Its totient is φ = 30045481840.

The previous prime is 66100060511. The next prime is 66100060547. The reversal of 66100060532 is 23506000166.

It can be written as a sum of positive squares in only one way, i.e., 65655862756 + 444197776 = 256234^2 + 21076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66100060495 and 66100060504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68284703 + ... + 68285670.

It is an arithmetic number, because the mean of its divisors is an integer number (7063723233).

Almost surely, 2^66100060532 is an apocalyptic number.

It is an amenable number.

66100060532 is a deficient number, since it is larger than the sum of its proper divisors (61046957662).

66100060532 is a wasteful number, since it uses less digits than its factorization.

66100060532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136570399 (or 136570386 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 66100060532 its reverse (23506000166), we get a palindrome (89606060698).

The spelling of 66100060532 in words is "sixty-six billion, one hundred million, sixty thousand, five hundred thirty-two".