662129383921266 has 16 divisors (see below), whose sum is σ = 1324769867359488. Its totient is φ = 220624611387600.

The previous prime is 662129383921231. The next prime is 662129383921303.

662129383921266 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 662129383921197 and 662129383921206.

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, 21295796365 + ... + 21295827456.

It is an arithmetic number, because the mean of its divisors is an integer number (82798116709968).

Almost surely, 2^{662129383921266} is an apocalyptic number.

662129383921266 is an abundant number, since it is smaller than the sum of its proper divisors (662640483438222).

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

662129383921266 is a wasteful number, since it uses less digits than its factorization.

662129383921266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42591626417.

The product of its digits is 120932352, while the sum is 66.

The spelling of 662129383921266 in words is "six hundred sixty-two trillion, one hundred twenty-nine billion, three hundred eighty-three million, nine hundred twenty-one thousand, two hundred sixty-six".