66142061132 has 24 divisors (see below), whose sum is σ = 132294022560. Its totient is φ = 28344476160.

The previous prime is 66142061129. The next prime is 66142061171. The reversal of 66142061132 is 23116024166.

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, 326594 + ... + 488822.

It is an arithmetic number, because the mean of its divisors is an integer number (5512250940).

Almost surely, 2^66142061132 is an apocalyptic number.

It is an amenable number.

66142061132 is an abundant number, since it is smaller than the sum of its proper divisors (66151961428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66142061132 is a wasteful number, since it uses less digits than its factorization.

66142061132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176801 (or 176799 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 66142061132 its reverse (23116024166), we get a palindrome (89258085298).

The spelling of 66142061132 in words is "sixty-six billion, one hundred forty-two million, sixty-one thousand, one hundred thirty-two".