422320261557 has 16 divisors (see below), whose sum is σ = 568003096640. Its totient is φ = 279098265600.

The previous prime is 422320261529. The next prime is 422320261567. The reversal of 422320261557 is 755162023224.

It is not a de Polignac number, because 422320261557 - 2¹² = 422320257461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422320261567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490444 + ... + 1041717.

It is an arithmetic number, because the mean of its divisors is an integer number (35500193540).

Almost surely, 2^422320261557 is an apocalyptic number.

It is an amenable number.

422320261557 is a deficient number, since it is larger than the sum of its proper divisors (145682835083).

422320261557 is a wasteful number, since it uses less digits than its factorization.

422320261557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532964.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 422320261557 in words is "four hundred twenty-two billion, three hundred twenty million, two hundred sixty-one thousand, five hundred fifty-seven".