20725191360 has 280 divisors, whose sum is σ = 76104268416. Its totient is φ = 5348229120.

The previous prime is 20725191287. The next prime is 20725191379. The reversal of 20725191360 is 6319152702.

20725191360 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 519 + 136 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 790624 + ... + 816416.

Almost surely, 2^20725191360 is an apocalyptic number.

20725191360 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 20725191360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38052134208).

20725191360 is an abundant number, since it is smaller than the sum of its proper divisors (55379077056).

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

20725191360 is a wasteful number, since it uses less digits than its factorization.

20725191360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25853 (or 25834 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 20725191360 in words is "twenty billion, seven hundred twenty-five million, one hundred ninety-one thousand, three hundred sixty".