320412352105551 has 4 divisors (see below), whose sum is σ = 427216469474072. Its totient is φ = 213608234737032.

The previous prime is 320412352105519. The next prime is 320412352105649. The reversal of 320412352105551 is 155501253214023.

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

It is not a de Polignac number, because 320412352105551 - 2⁵ = 320412352105519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320412352105501) 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, 53402058684256 + ... + 53402058684261.

It is an arithmetic number, because the mean of its divisors is an integer number (106804117368518).

Almost surely, 2^{320412352105551} is an apocalyptic number.

320412352105551 is a deficient number, since it is larger than the sum of its proper divisors (106804117368521).

320412352105551 is a wasteful number, since it uses less digits than its factorization.

320412352105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106804117368520.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 320412352105551 in words is "three hundred twenty trillion, four hundred twelve billion, three hundred fifty-two million, one hundred five thousand, five hundred fifty-one".