20223857512 has 32 divisors (see below), whose sum is σ = 38611802880. Its totient is φ = 9928621440.

The previous prime is 20223857471. The next prime is 20223857557. The reversal of 20223857512 is 21575832202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52587 + ... + 207877.

It is an arithmetic number, because the mean of its divisors is an integer number (1206618840).

Almost surely, 2^20223857512 is an apocalyptic number.

It is an amenable number.

20223857512 is a deficient number, since it is larger than the sum of its proper divisors (18387945368).

20223857512 is a wasteful number, since it uses less digits than its factorization.

20223857512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155593 (or 155589 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 20223857512 in words is "twenty billion, two hundred twenty-three million, eight hundred fifty-seven thousand, five hundred twelve".