421202511266 has 16 divisors (see below), whose sum is σ = 639546936000. Its totient is φ = 208035427248.

The previous prime is 421202511227. The next prime is 421202511299. The reversal of 421202511266 is 662115202124.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3751505 + ... + 3862148.

It is an arithmetic number, because the mean of its divisors is an integer number (39971683500).

Almost surely, 2^421202511266 is an apocalyptic number.

421202511266 is a deficient number, since it is larger than the sum of its proper divisors (218344424734).

421202511266 is a wasteful number, since it uses less digits than its factorization.

421202511266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613993.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 421202511266 in words is "four hundred twenty-one billion, two hundred two million, five hundred eleven thousand, two hundred sixty-six".