422661644131 has 4 divisors (see below), whose sum is σ = 425353756672. Its totient is φ = 419969531592.

The previous prime is 422661644107. The next prime is 422661644161. The reversal of 422661644131 is 131446166224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422661644131 - 2¹³ = 422661635939 is a prime.

It is a super-2 number, since 2×422661644131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422661644161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346056035 + ... + 1346056348.

It is an arithmetic number, because the mean of its divisors is an integer number (106338439168).

Almost surely, 2^422661644131 is an apocalyptic number.

422661644131 is a deficient number, since it is larger than the sum of its proper divisors (2692112541).

422661644131 is a wasteful number, since it uses less digits than its factorization.

422661644131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692112540.

The product of its digits is 165888, while the sum is 40.

The spelling of 422661644131 in words is "four hundred twenty-two billion, six hundred sixty-one million, six hundred forty-four thousand, one hundred thirty-one".