21470027766330 has 128 divisors (see below), whose sum is σ = 61944295311360. Its totient is φ = 4692749564160.

The previous prime is 21470027766203. The next prime is 21470027766331. The reversal of 21470027766330 is 3366772007412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21470027766330.

It is not an unprimeable number, because it can be changed into a prime (21470027766331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58009350 + ... + 58378289.

It is an arithmetic number, because the mean of its divisors is an integer number (483939807120).

Almost surely, 2^{21470027766330} is an apocalyptic number.

21470027766330 is an abundant number, since it is smaller than the sum of its proper divisors (40474267545030).

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

21470027766330 is a wasteful number, since it uses less digits than its factorization.

21470027766330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116387716.

The product of its (nonzero) digits is 1778112, while the sum is 48.

The spelling of 21470027766330 in words is "twenty-one trillion, four hundred seventy billion, twenty-seven million, seven hundred sixty-six thousand, three hundred thirty".