320450112543015 has 192 divisors, whose sum is σ = 691077929068800. Its totient is φ = 133751723212800.

The previous prime is 320450112542993. The next prime is 320450112543037. The reversal of 320450112543015 is 510345211054023.

320450112543015 is a `hidden beast` number, since 3 + 2 + 0 + 450 + 112 + 54 + 30 + 15 = 666.

It is an interprime number because it is at equal distance from previous prime (320450112542993) and next prime (320450112543037).

It is not a de Polignac number, because 320450112543015 - 2¹⁹ = 320450112018727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 418589311 + ... + 419354159.

It is an arithmetic number, because the mean of its divisors is an integer number (3599364213900).

Almost surely, 2^{320450112543015} is an apocalyptic number.

320450112543015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

320450112543015 is an abundant number, since it is smaller than the sum of its proper divisors (370627816525785).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320450112543015 is a wasteful number, since it uses less digits than its factorization.

320450112543015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765994 (or 765991 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 320450112543015 its reverse (510345211054023), we get a palindrome (830795323597038).

The spelling of 320450112543015 in words is "three hundred twenty trillion, four hundred fifty billion, one hundred twelve million, five hundred forty-three thousand, fifteen".