16425247213680 has 80 divisors (see below), whose sum is σ = 51051212513280. Its totient is φ = 4368629695744.

The previous prime is 16425247213679. The next prime is 16425247213681. The reversal of 16425247213680 is 8631274252461.

It is an interprime number because it is at equal distance from previous prime (16425247213679) and next prime (16425247213681).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425247213681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89253420 + ... + 89437259.

It is an arithmetic number, because the mean of its divisors is an integer number (638140156416).

Almost surely, 2^{16425247213680} is an apocalyptic number.

16425247213680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16425247213680 is an abundant number, since it is smaller than the sum of its proper divisors (34625965299600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16425247213680 is a wasteful number, since it uses less digits than its factorization.

16425247213680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178691078 (or 178691072 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 16425247213680 in words is "sixteen trillion, four hundred twenty-five billion, two hundred forty-seven million, two hundred thirteen thousand, six hundred eighty".