20456012007 has 12 divisors (see below), whose sum is σ = 29549365560. Its totient is φ = 13636513968.

The previous prime is 20456011997. The next prime is 20456012033. The reversal of 20456012007 is 70021065402.

20456012007 is a `hidden beast` number, since 2 + 0 + 456 + 0 + 1 + 200 + 7 = 666.

It is not a de Polignac number, because 20456012007 - 2²² = 20451817703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20456013007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112873 + ... + 231629.

It is an arithmetic number, because the mean of its divisors is an integer number (2462447130).

Almost surely, 2^20456012007 is an apocalyptic number.

20456012007 is a deficient number, since it is larger than the sum of its proper divisors (9093353553).

20456012007 is a wasteful number, since it uses less digits than its factorization.

20456012007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137902 (or 137899 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 20456012007 its reverse (70021065402), we get a palindrome (90477077409).

The spelling of 20456012007 in words is "twenty billion, four hundred fifty-six million, twelve thousand, seven".