1005955960591 has 8 divisors (see below), whose sum is σ = 1010242617264. Its totient is φ = 1001676137280.

The previous prime is 1005955960573. The next prime is 1005955960609. The reversal of 1005955960591 is 1950695595001.

It is an interprime number because it is at equal distance from previous prime (1005955960573) and next prime (1005955960609).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005955960591 - 2¹³ = 1005955952399 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 (1005955960531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413181 + ... + 2002246.

It is an arithmetic number, because the mean of its divisors is an integer number (126280327158).

Almost surely, 2^{1005955960591} is an apocalyptic number.

1005955960591 is a deficient number, since it is larger than the sum of its proper divisors (4286656673).

1005955960591 is an equidigital number, since it uses as much as digits as its factorization.

1005955960591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416681.

The product of its (nonzero) digits is 2733750, while the sum is 55.

The spelling of 1005955960591 in words is "one trillion, five billion, nine hundred fifty-five million, nine hundred sixty thousand, five hundred ninety-one".