320237146477 has 2 divisors, whose sum is σ = 320237146478. Its totient is φ = 320237146476.

The previous prime is 320237146433. The next prime is 320237146511. The reversal of 320237146477 is 774641732023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318901901796 + 1335244681 = 564714^2 + 36541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320237146477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320237126477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160118573238 + 160118573239.

It is an arithmetic number, because the mean of its divisors is an integer number (160118573239).

Almost surely, 2^320237146477 is an apocalyptic number.

It is an amenable number.

320237146477 is a deficient number, since it is larger than the sum of its proper divisors (1).

320237146477 is an equidigital number, since it uses as much as digits as its factorization.

320237146477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 46.

The spelling of 320237146477 in words is "three hundred twenty billion, two hundred thirty-seven million, one hundred forty-six thousand, four hundred seventy-seven".