1086420850065 has 48 divisors (see below), whose sum is σ = 1918883500560. Its totient is φ = 568425761280.

The previous prime is 1086420849977. The next prime is 1086420850087. The reversal of 1086420850065 is 5600580246801.

1086420850065 is a `hidden beast` number, since 1 + 0 + 8 + 64 + 20 + 8 + 500 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 123842055744 + 962578794321 = 351912^2 + 981111^2 .

It is not a de Polignac number, because 1086420850065 - 2⁷ = 1086420849937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1086420850065.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25710655 + ... + 25752875.

It is an arithmetic number, because the mean of its divisors is an integer number (39976739595).

Almost surely, 2^{1086420850065} is an apocalyptic number.

1086420850065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1086420850065 is a deficient number, since it is larger than the sum of its proper divisors (832462650495).

1086420850065 is a wasteful number, since it uses less digits than its factorization.

1086420850065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53074 (or 53071 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 1086420850065 in words is "one trillion, eighty-six billion, four hundred twenty million, eight hundred fifty thousand, sixty-five".