20670291360 has 288 divisors, whose sum is σ = 73800574848. Its totient is φ = 5258373120.

The previous prime is 20670291359. The next prime is 20670291373. The reversal of 20670291360 is 6319207602.

20670291360 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 0 + 291 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 47 ways as a sum of consecutive naturals, for example, 18910974 + ... + 18912066.

It is an arithmetic number, because the mean of its divisors is an integer number (256251996).

Almost surely, 2^20670291360 is an apocalyptic number.

20670291360 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 20670291360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36900287424).

20670291360 is an abundant number, since it is smaller than the sum of its proper divisors (53130283488).

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

20670291360 is a wasteful number, since it uses less digits than its factorization.

20670291360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

Adding to 20670291360 its reverse (6319207602), we get a palindrome (26989498962).

The spelling of 20670291360 in words is "twenty billion, six hundred seventy million, two hundred ninety-one thousand, three hundred sixty".