21314151260066 has 64 divisors (see below), whose sum is σ = 37417162982400. Its totient is φ = 8917705368000.

The previous prime is 21314151260029. The next prime is 21314151260111. The reversal of 21314151260066 is 66006215141312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61742441 + ... + 62086691.

It is an arithmetic number, because the mean of its divisors is an integer number (584643171600).

Almost surely, 2^{21314151260066} is an apocalyptic number.

21314151260066 is a deficient number, since it is larger than the sum of its proper divisors (16103011722334).

21314151260066 is a wasteful number, since it uses less digits than its factorization.

21314151260066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344919.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 21314151260066 in words is "twenty-one trillion, three hundred fourteen billion, one hundred fifty-one million, two hundred sixty thousand, sixty-six".