16140064020 has 48 divisors (see below), whose sum is σ = 45379739328. Its totient is φ = 4286154240.

The previous prime is 16140063967. The next prime is 16140064063. The reversal of 16140064020 is 2046004161.

It is a super-4 number, since 4×16140064020⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543634 + ... + 572553.

It is an arithmetic number, because the mean of its divisors is an integer number (945411236).

Almost surely, 2^16140064020 is an apocalyptic number.

16140064020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16140064020 is an abundant number, since it is smaller than the sum of its proper divisors (29239675308).

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

16140064020 is a wasteful number, since it uses less digits than its factorization.

16140064020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116440 (or 1116438 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 16140064020 its reverse (2046004161), we get a palindrome (18186068181).

The spelling of 16140064020 in words is "sixteen billion, one hundred forty million, sixty-four thousand, twenty".