20472667576 has 8 divisors (see below), whose sum is σ = 38386251720. Its totient is φ = 10236333784.

The previous prime is 20472667559. The next prime is 20472667603. The reversal of 20472667576 is 67576627402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279541716 + ... + 1279541731.

It is an arithmetic number, because the mean of its divisors is an integer number (4798281465).

Almost surely, 2^20472667576 is an apocalyptic number.

It is an amenable number.

20472667576 is a deficient number, since it is larger than the sum of its proper divisors (17913584144).

20472667576 is a wasteful number, since it uses less digits than its factorization.

20472667576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559083453 (or 2559083449 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 20472667576 in words is "twenty billion, four hundred seventy-two million, six hundred sixty-seven thousand, five hundred seventy-six".