16023207507840 has 640 divisors, whose sum is σ = 61936764009120. Its totient is φ = 3924120453120.

The previous prime is 16023207507787. The next prime is 16023207507883. The reversal of 16023207507840 is 4870570232061.

16023207507840 is a `hidden beast` number, since 1 + 60 + 2 + 3 + 2 + 0 + 7 + 507 + 84 + 0 = 666.

16023207507840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×16023207507840² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 132701895 + ... + 132822585.

Almost surely, 2^{16023207507840} is an apocalyptic number.

16023207507840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16023207507840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30968382004560).

16023207507840 is an abundant number, since it is smaller than the sum of its proper divisors (45913556501280).

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

16023207507840 is a wasteful number, since it uses less digits than its factorization.

16023207507840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120932 (or 120911 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 16023207507840 in words is "sixteen trillion, twenty-three billion, two hundred seven million, five hundred seven thousand, eight hundred forty".