20995488414 has 64 divisors (see below), whose sum is σ = 49134624000. Its totient is φ = 6627134880.

The previous prime is 20995488413. The next prime is 20995488431. The reversal of 20995488414 is 41488459902.

It is a happy number.

20995488414 is a `hidden beast` number, since 2 + 0 + 9 + 9 + 548 + 84 + 14 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20995488413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3630177 + ... + 3635955.

It is an arithmetic number, because the mean of its divisors is an integer number (767728500).

Almost surely, 2^20995488414 is an apocalyptic number.

20995488414 is an abundant number, since it is smaller than the sum of its proper divisors (28139135586).

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

20995488414 is a wasteful number, since it uses less digits than its factorization.

20995488414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350 (or 9344 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 20995488414 in words is "twenty billion, nine hundred ninety-five million, four hundred eighty-eight thousand, four hundred fourteen".