1955223640424 has 16 divisors (see below), whose sum is σ = 3728180671200. Its totient is φ = 961042128112.

The previous prime is 1955223640421. The next prime is 1955223640499. The reversal of 1955223640424 is 4240463225591.

It is not an unprimeable number, because it can be changed into a prime (1955223640421) 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, 2071211012 + ... + 2071211955.

It is an arithmetic number, because the mean of its divisors is an integer number (233011291950).

Almost surely, 2^{1955223640424} is an apocalyptic number.

It is an amenable number.

1955223640424 is a deficient number, since it is larger than the sum of its proper divisors (1772957030776).

1955223640424 is a wasteful number, since it uses less digits than its factorization.

1955223640424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142423032 (or 4142423028 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 1955223640424 in words is "one trillion, nine hundred fifty-five billion, two hundred twenty-three million, six hundred forty thousand, four hundred twenty-four".