20075047040 has 64 divisors (see below), whose sum is σ = 50814990360. Its totient is φ = 7557660672.

The previous prime is 20075046983. The next prime is 20075047051. The reversal of 20075047040 is 4074057002.

It can be written as a sum of positive squares in 4 ways, for example, as 11624289856 + 8450757184 = 107816^2 + 91928^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 20075046994 and 20075047012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911687 + ... + 933446.

Almost surely, 2^20075047040 is an apocalyptic number.

20075047040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20075047040 is an abundant number, since it is smaller than the sum of its proper divisors (30739943320).

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

20075047040 is a wasteful number, since it uses less digits than its factorization.

20075047040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845169 (or 1845157 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The spelling of 20075047040 in words is "twenty billion, seventy-five million, forty-seven thousand, forty".