16445401132 has 48 divisors (see below), whose sum is σ = 30690424800. Its totient is φ = 7688355840.

The previous prime is 16445401121. The next prime is 16445401169. The reversal of 16445401132 is 23110454461.

It is a junction number, because it is equal to n+sod(n) for n = 16445401094 and 16445401103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4333828 + ... + 4337620.

It is an arithmetic number, because the mean of its divisors is an integer number (639383850).

Almost surely, 2^16445401132 is an apocalyptic number.

It is an amenable number.

16445401132 is a deficient number, since it is larger than the sum of its proper divisors (14245023668).

16445401132 is a wasteful number, since it uses less digits than its factorization.

16445401132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4544 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 16445401132 its reverse (23110454461), we get a palindrome (39555855593).

The spelling of 16445401132 in words is "sixteen billion, four hundred forty-five million, four hundred one thousand, one hundred thirty-two".