20825645701 has 8 divisors (see below), whose sum is σ = 23877270144. Its totient is φ = 17793154320.

The previous prime is 20825645699. The next prime is 20825645747. The reversal of 20825645701 is 10754652802.

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

It is a cyclic number.

It is not a de Polignac number, because 20825645701 - 2¹ = 20825645699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20825646701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4780930 + ... + 4785283.

It is an arithmetic number, because the mean of its divisors is an integer number (2984658768).

Almost surely, 2^20825645701 is an apocalyptic number.

It is an amenable number.

20825645701 is a deficient number, since it is larger than the sum of its proper divisors (3051624443).

20825645701 is an equidigital number, since it uses as much as digits as its factorization.

20825645701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566531.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20825645701 in words is "twenty billion, eight hundred twenty-five million, six hundred forty-five thousand, seven hundred one".