20507647024 has 20 divisors (see below), whose sum is σ = 39851480344. Its totient is φ = 10223394048.

The previous prime is 20507647019. The next prime is 20507647057. The reversal of 20507647024 is 42074670502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896282 + ... + 1907065.

Almost surely, 2^20507647024 is an apocalyptic number.

It is an amenable number.

20507647024 is a deficient number, since it is larger than the sum of its proper divisors (19343833320).

20507647024 is a wasteful number, since it uses less digits than its factorization.

20507647024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803692 (or 3803686 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 20507647024 in words is "twenty billion, five hundred seven million, six hundred forty-seven thousand, twenty-four".