66351132 has 18 divisors (see below), whose sum is σ = 167721008. Its totient is φ = 22117032.

The previous prime is 66351127. The next prime is 66351137. The reversal of 66351132 is 23115366.

66351132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66351127) and next prime (66351137).

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 66351096 and 66351105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66351137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 921508 + ... + 921579.

Almost surely, 2^66351132 is an apocalyptic number.

It is an amenable number.

66351132 is an abundant number, since it is smaller than the sum of its proper divisors (101369876).

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

66351132 is a wasteful number, since it uses less digits than its factorization.

66351132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843097 (or 1843092 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 66351132 is about 8145.6204183598. The cubic root of 66351132 is about 404.8394059213.

Adding to 66351132 its reverse (23115366), we get a palindrome (89466498).

The spelling of 66351132 in words is "sixty-six million, three hundred fifty-one thousand, one hundred thirty-two".