855395596801 has 4 divisors (see below), whose sum is σ = 855408866004. Its totient is φ = 855382327600.

The previous prime is 855395596789. The next prime is 855395596813. The reversal of 855395596801 is 108695593558.

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

It is an interprime number because it is at equal distance from previous prime (855395596789) and next prime (855395596813).

It can be written as a sum of positive squares in 2 ways, for example, as 429580619776 + 425814977025 = 655424^2 + 652545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855395596801 is a prime.

It is a super-2 number, since 2×855395596801² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855395596871) 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, 6537430 + ... + 6666991.

It is an arithmetic number, because the mean of its divisors is an integer number (213852216501).

Almost surely, 2^855395596801 is an apocalyptic number.

It is an amenable number.

855395596801 is a deficient number, since it is larger than the sum of its proper divisors (13269203).

855395596801 is a wasteful number, since it uses less digits than its factorization.

855395596801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269202.

The product of its (nonzero) digits is 58320000, while the sum is 64.

The spelling of 855395596801 in words is "eight hundred fifty-five billion, three hundred ninety-five million, five hundred ninety-six thousand, eight hundred one".