20410660787 has 6 divisors (see below), whose sum is σ = 22434858684. Its totient is φ = 18555146060.

The previous prime is 20410660733. The next prime is 20410660793. The reversal of 20410660787 is 78706601402.

It is not a de Polignac number, because 20410660787 - 2¹⁴ = 20410644403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20410660687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84341453 + ... + 84341694.

It is an arithmetic number, because the mean of its divisors is an integer number (3739143114).

Almost surely, 2^20410660787 is an apocalyptic number.

20410660787 is a deficient number, since it is larger than the sum of its proper divisors (2024197897).

20410660787 is a wasteful number, since it uses less digits than its factorization.

20410660787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168683169 (or 168683158 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 20410660787 in words is "twenty billion, four hundred ten million, six hundred sixty thousand, seven hundred eighty-seven".