20357573012 has 48 divisors (see below), whose sum is σ = 42319536000. Its totient is φ = 8386561152.

The previous prime is 20357572957. The next prime is 20357573017. The reversal of 20357573012 is 21037575302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20357573017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32387 + ... + 204362.

It is an arithmetic number, because the mean of its divisors is an integer number (881657000).

Almost surely, 2^20357573012 is an apocalyptic number.

It is an amenable number.

20357573012 is an abundant number, since it is smaller than the sum of its proper divisors (21961962988).

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

20357573012 is a wasteful number, since it uses less digits than its factorization.

20357573012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236880 (or 236878 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 35.

The spelling of 20357573012 in words is "twenty billion, three hundred fifty-seven million, five hundred seventy-three thousand, twelve".