20385562007 has 2 divisors, whose sum is σ = 20385562008. Its totient is φ = 20385562006.

The previous prime is 20385562003. The next prime is 20385562111. The reversal of 20385562007 is 70026558302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20385562007 - 2² = 20385562003 is a prime.

It is a super-2 number, since 2×20385562007² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20385562003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10192781003 + 10192781004.

It is an arithmetic number, because the mean of its divisors is an integer number (10192781004).

Almost surely, 2^20385562007 is an apocalyptic number.

20385562007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20385562007 is an equidigital number, since it uses as much as digits as its factorization.

20385562007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 20385562007 in words is "twenty billion, three hundred eighty-five million, five hundred sixty-two thousand, seven".