20825645702 has 8 divisors (see below), whose sum is σ = 31614835896. Its totient is φ = 10287367072.

The previous prime is 20825645699. The next prime is 20825645747. The reversal of 20825645702 is 20754652802.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20825645702.

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, 62727683 + ... + 62728014.

It is an arithmetic number, because the mean of its divisors is an integer number (3951854487).

Almost surely, 2^20825645702 is an apocalyptic number.

20825645702 is a deficient number, since it is larger than the sum of its proper divisors (10789190194).

20825645702 is a wasteful number, since it uses less digits than its factorization.

20825645702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125455782.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 20825645702 in words is "twenty billion, eight hundred twenty-five million, six hundred forty-five thousand, seven hundred two".