1646066132 has 12 divisors (see below), whose sum is σ = 2880928596. Its totient is φ = 822943680.

The previous prime is 1646066113. The next prime is 1646066137. The reversal of 1646066132 is 2316606461.

It can be written as a sum of positive squares in 2 ways, for example, as 21492496 + 1624573636 = 4636^2 + 40306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1646066092 and 1646066101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1646066137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36032 + ... + 67752.

It is an arithmetic number, because the mean of its divisors is an integer number (240077383).

Almost surely, 2^1646066132 is an apocalyptic number.

It is an amenable number.

1646066132 is a deficient number, since it is larger than the sum of its proper divisors (1234862464).

1646066132 is a wasteful number, since it uses less digits than its factorization.

1646066132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44698 (or 44696 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1646066132 is about 40571.7405591626. The cubic root of 1646066132 is about 1180.7259087995.

The spelling of 1646066132 in words is "one billion, six hundred forty-six million, sixty-six thousand, one hundred thirty-two".