958944066557 has 2 divisors, whose sum is σ = 958944066558. Its totient is φ = 958944066556.

The previous prime is 958944066547. The next prime is 958944066569. The reversal of 958944066557 is 755660449859.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 603893735236 + 355050331321 = 777106^2 + 595861^2 .

It is a cyclic number.

It is not a de Polignac number, because 958944066557 - 2²⁶ = 958876957693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (958944066547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479472033278 + 479472033279.

It is an arithmetic number, because the mean of its divisors is an integer number (479472033279).

Almost surely, 2^958944066557 is an apocalyptic number.

It is an amenable number.

958944066557 is a deficient number, since it is larger than the sum of its proper divisors (1).

958944066557 is an equidigital number, since it uses as much as digits as its factorization.

958944066557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592000, while the sum is 68.

The spelling of 958944066557 in words is "nine hundred fifty-eight billion, nine hundred forty-four million, sixty-six thousand, five hundred fifty-seven".