16432434255507 has 24 divisors (see below), whose sum is σ = 23219187735744. Its totient is φ = 10331217619296.

The previous prime is 16432434255499. The next prime is 16432434255539. The reversal of 16432434255507 is 70555243423461.

It is not a de Polignac number, because 16432434255507 - 2³ = 16432434255499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16432434255507.

It is not an unprimeable number, because it can be changed into a prime (16432434255607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75624693 + ... + 75841670.

It is an arithmetic number, because the mean of its divisors is an integer number (967466155656).

Almost surely, 2^{16432434255507} is an apocalyptic number.

16432434255507 is a deficient number, since it is larger than the sum of its proper divisors (6786753480237).

16432434255507 is a wasteful number, since it uses less digits than its factorization.

16432434255507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151466467 (or 151466438 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 51.

Adding to 16432434255507 its reverse (70555243423461), we get a palindrome (86987677678968).

The spelling of 16432434255507 in words is "sixteen trillion, four hundred thirty-two billion, four hundred thirty-four million, two hundred fifty-five thousand, five hundred seven".