320225646542 has 4 divisors (see below), whose sum is σ = 480338469816. Its totient is φ = 160112823270.

The previous prime is 320225646539. The next prime is 320225646547. The reversal of 320225646542 is 245646522023.

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

It is a self number, because there is not a number n which added to its sum of digits gives 320225646542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320225646547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80056411634 + ... + 80056411637.

It is an arithmetic number, because the mean of its divisors is an integer number (120084617454).

Almost surely, 2^320225646542 is an apocalyptic number.

320225646542 is a deficient number, since it is larger than the sum of its proper divisors (160112823274).

320225646542 is a wasteful number, since it uses less digits than its factorization.

320225646542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160112823273.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 320225646542 in words is "three hundred twenty billion, two hundred twenty-five million, six hundred forty-six thousand, five hundred forty-two".