20570670542 has 8 divisors (see below), whose sum is σ = 30931449600. Its totient is φ = 10260187344.

The previous prime is 20570670529. The next prime is 20570670557. The reversal of 20570670542 is 24507607502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20570670496 and 20570670505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12572942 + ... + 12574577.

It is an arithmetic number, because the mean of its divisors is an integer number (3866431200).

Almost surely, 2^20570670542 is an apocalyptic number.

20570670542 is a deficient number, since it is larger than the sum of its proper divisors (10360779058).

20570670542 is a wasteful number, since it uses less digits than its factorization.

20570670542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25147930.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 20570670542 in words is "twenty billion, five hundred seventy million, six hundred seventy thousand, five hundred forty-two".