320245432552 has 8 divisors (see below), whose sum is σ = 600460186050. Its totient is φ = 160122716272.

The previous prime is 320245432537. The next prime is 320245432553. The reversal of 320245432552 is 255234542023.

It can be written as a sum of positive squares in only one way, i.e., 193647522916 + 126597909636 = 440054^2 + 355806^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (320245432553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20015339527 + ... + 20015339542.

Almost surely, 2^320245432552 is an apocalyptic number.

It is an amenable number.

320245432552 is a deficient number, since it is larger than the sum of its proper divisors (280214753498).

320245432552 is a wasteful number, since it uses less digits than its factorization.

320245432552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40030679075 (or 40030679071 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 320245432552 its reverse (255234542023), we get a palindrome (575479974575).

The spelling of 320245432552 in words is "three hundred twenty billion, two hundred forty-five million, four hundred thirty-two thousand, five hundred fifty-two".