16432451536672 has 12 divisors (see below), whose sum is σ = 32351388962886. Its totient is φ = 8216225768320.

The previous prime is 16432451536621. The next prime is 16432451536673. The reversal of 16432451536672 is 27663515423461.

It can be written as a sum of positive squares in only one way, i.e., 9850332898576 + 6582118638096 = 3138524^2 + 2565564^2 .

It is not an unprimeable number, because it can be changed into a prime (16432451536673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256757055229 + ... + 256757055292.

Almost surely, 2^{16432451536672} is an apocalyptic number.

It is an amenable number.

16432451536672 is a deficient number, since it is larger than the sum of its proper divisors (15918937426214).

16432451536672 is an equidigital number, since it uses as much as digits as its factorization.

16432451536672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513514110531 (or 513514110523 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 55.

The spelling of 16432451536672 in words is "sixteen trillion, four hundred thirty-two billion, four hundred fifty-one million, five hundred thirty-six thousand, six hundred seventy-two".