21470120676366 has 16 divisors (see below), whose sum is σ = 43528463837904. Its totient is φ = 7058669811264.

The previous prime is 21470120676289. The next prime is 21470120676397. The reversal of 21470120676366 is 66367602107412.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24509269741 + ... + 24509270616.

It is an arithmetic number, because the mean of its divisors is an integer number (2720528989869).

Almost surely, 2^{21470120676366} is an apocalyptic number.

21470120676366 is an abundant number, since it is smaller than the sum of its proper divisors (22058343161538).

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

21470120676366 is a wasteful number, since it uses less digits than its factorization.

21470120676366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49018540435.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 21470120676366 in words is "twenty-one trillion, four hundred seventy billion, one hundred twenty million, six hundred seventy-six thousand, three hundred sixty-six".