16738720438425 has 96 divisors (see below), whose sum is σ = 29818657733760. Its totient is φ = 8254395187200.

The previous prime is 16738720438421. The next prime is 16738720438457. The reversal of 16738720438425 is 52483402783761.

It is not a de Polignac number, because 16738720438425 - 2² = 16738720438421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16738720438421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116752785 + ... + 116896065.

It is an arithmetic number, because the mean of its divisors is an integer number (310611018060).

Almost surely, 2^{16738720438425} is an apocalyptic number.

16738720438425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16738720438425 is a deficient number, since it is larger than the sum of its proper divisors (13079937295335).

16738720438425 is a wasteful number, since it uses less digits than its factorization.

16738720438425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144923 (or 144918 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 16738720438425 in words is "sixteen trillion, seven hundred thirty-eight billion, seven hundred twenty million, four hundred thirty-eight thousand, four hundred twenty-five".