20168570902 has 8 divisors (see below), whose sum is σ = 30473680536. Its totient is φ = 10010677392.

The previous prime is 20168570897. The next prime is 20168570911. The reversal of 20168570902 is 20907586102.

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

It is a congruent number.

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, 36803688 + ... + 36804235.

It is an arithmetic number, because the mean of its divisors is an integer number (3809210067).

Almost surely, 2^20168570902 is an apocalyptic number.

20168570902 is a deficient number, since it is larger than the sum of its proper divisors (10305109634).

20168570902 is a wasteful number, since it uses less digits than its factorization.

20168570902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73608062.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 20168570902 in words is "twenty billion, one hundred sixty-eight million, five hundred seventy thousand, nine hundred two".