20070840960 has 160 divisors (see below), whose sum is σ = 71676782100. Its totient is φ = 5352210432.

The previous prime is 20070840913. The next prime is 20070840961. The reversal of 20070840960 is 6904807002.

It can be written as a sum of positive squares in 2 ways, for example, as 20057357376 + 13483584 = 141624^2 + 3672^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×20070840960² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20070840961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141745 + ... + 245424.

Almost surely, 2^20070840960 is an apocalyptic number.

20070840960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20070840960 is an abundant number, since it is smaller than the sum of its proper divisors (51605941140).

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

20070840960 is an equidigital number, since it uses as much as digits as its factorization.

20070840960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387200 (or 387179 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20070840960 in words is "twenty billion, seventy million, eight hundred forty thousand, nine hundred sixty".