420220622666 has 32 divisors (see below), whose sum is σ = 680545732608. Its totient is φ = 193454913600.

The previous prime is 420220622659. The next prime is 420220622761. The reversal of 420220622666 is 666226022024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18333185 + ... + 18356091.

It is an arithmetic number, because the mean of its divisors is an integer number (21267054144).

Almost surely, 2^420220622666 is an apocalyptic number.

420220622666 is a deficient number, since it is larger than the sum of its proper divisors (260325109942).

420220622666 is a wasteful number, since it uses less digits than its factorization.

420220622666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 420220622666 in words is "four hundred twenty billion, two hundred twenty million, six hundred twenty-two thousand, six hundred sixty-six".