20945413458 has 32 divisors (see below), whose sum is σ = 48995121600. Its totient is φ = 6614340768.

The previous prime is 20945413453. The next prime is 20945413459. The reversal of 20945413458 is 85431454902.

20945413458 is a `hidden beast` number, since 20 + 9 + 4 + 541 + 34 + 58 = 666.

It is not an unprimeable number, because it can be changed into a prime (20945413453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10206291 + ... + 10208342.

It is an arithmetic number, because the mean of its divisors is an integer number (1531097550).

Almost surely, 2^20945413458 is an apocalyptic number.

20945413458 is an abundant number, since it is smaller than the sum of its proper divisors (28049708142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20945413458 is a wasteful number, since it uses less digits than its factorization.

20945413458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20414663 (or 20414657 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 20945413458 in words is "twenty billion, nine hundred forty-five million, four hundred thirteen thousand, four hundred fifty-eight".