20104164040 has 32 divisors (see below), whose sum is σ = 45871479360. Its totient is φ = 7928401600.

The previous prime is 20104164023. The next prime is 20104164049. The reversal of 20104164040 is 4046140102.

It is not an unprimeable number, because it can be changed into a prime (20104164049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536626 + ... + 3542305.

It is an arithmetic number, because the mean of its divisors is an integer number (1433483730).

Almost surely, 2^20104164040 is an apocalyptic number.

20104164040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104164040 is an abundant number, since it is smaller than the sum of its proper divisors (25767315320).

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

20104164040 is a wasteful number, since it uses less digits than its factorization.

20104164040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079013 (or 7079009 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The spelling of 20104164040 in words is "twenty billion, one hundred four million, one hundred sixty-four thousand, forty".