20627814145 has 8 divisors (see below), whose sum is σ = 24755633280. Its totient is φ = 16500747120.

The previous prime is 20627814143. The next prime is 20627814169. The reversal of 20627814145 is 54141872602.

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

It is not a de Polignac number, because 20627814145 - 2¹ = 20627814143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20627814098 and 20627814107.

It is not an unprimeable number, because it can be changed into a prime (20627814143) 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, 125815 + ... + 238924.

It is an arithmetic number, because the mean of its divisors is an integer number (3094454160).

Almost surely, 2^20627814145 is an apocalyptic number.

It is an amenable number.

20627814145 is a deficient number, since it is larger than the sum of its proper divisors (4127819135).

20627814145 is a wasteful number, since it uses less digits than its factorization.

20627814145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376055.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 20627814145 in words is "twenty billion, six hundred twenty-seven million, eight hundred fourteen thousand, one hundred forty-five".