90330320077 has 2 divisors, whose sum is σ = 90330320078. Its totient is φ = 90330320076.

The previous prime is 90330320057. The next prime is 90330320107. The reversal of 90330320077 is 77002303309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50062272516 + 40268047561 = 223746^2 + 200669^2 .

It is a cyclic number.

It is not a de Polignac number, because 90330320077 - 2⁷ = 90330319949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90330320027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45165160038 + 45165160039.

It is an arithmetic number, because the mean of its divisors is an integer number (45165160039).

Almost surely, 2^90330320077 is an apocalyptic number.

It is an amenable number.

90330320077 is a deficient number, since it is larger than the sum of its proper divisors (1).

90330320077 is an equidigital number, since it uses as much as digits as its factorization.

90330320077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 34.

The spelling of 90330320077 in words is "ninety billion, three hundred thirty million, three hundred twenty thousand, seventy-seven".