20065394160 has 360 divisors, whose sum is σ = 80062572096. Its totient is φ = 4488422400.

The previous prime is 20065394131. The next prime is 20065394197. The reversal of 20065394160 is 6149356002.

It is a happy number.

20065394160 is a `hidden beast` number, since 20 + 0 + 6 + 539 + 41 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1652110 + ... + 1664210.

Almost surely, 2^20065394160 is an apocalyptic number.

20065394160 is a gapful number since it is divisible by the number (20) 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 20065394160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40031286048).

20065394160 is an abundant number, since it is smaller than the sum of its proper divisors (59997177936).

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

20065394160 is a wasteful number, since it uses less digits than its factorization.

20065394160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181 (or 12165 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 20065394160 in words is "twenty billion, sixty-five million, three hundred ninety-four thousand, one hundred sixty".