20264065407 has 10 divisors (see below), whose sum is σ = 30271011408. Its totient is φ = 13509376884.

The previous prime is 20264065387. The next prime is 20264065417. The reversal of 20264065407 is 70456046202.

20264065407 is a `hidden beast` number, since 2 + 0 + 2 + 640 + 6 + 5 + 4 + 0 + 7 = 666.

It is not a de Polignac number, because 20264065407 - 2⁶ = 20264065343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264065417) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 125086743 + ... + 125086904.

Almost surely, 2^20264065407 is an apocalyptic number.

20264065407 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20264065407 is a deficient number, since it is larger than the sum of its proper divisors (10006946001).

20264065407 is an equidigital number, since it uses as much as digits as its factorization.

20264065407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250173659 (or 250173650 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 20264065407 in words is "twenty billion, two hundred sixty-four million, sixty-five thousand, four hundred seven".