1016803806081 has 32 divisors (see below), whose sum is σ = 1640736645120. Its totient is φ = 546792719616.

The previous prime is 1016803806037. The next prime is 1016803806091. The reversal of 1016803806081 is 1806083086101.

It is not a de Polignac number, because 1016803806081 - 2⁶ = 1016803806017 is a prime.

It is a super-2 number, since 2×1016803806081² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1016803806091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3218850 + ... + 3520596.

It is an arithmetic number, because the mean of its divisors is an integer number (51273020160).

Almost surely, 2^{1016803806081} is an apocalyptic number.

It is an amenable number.

1016803806081 is a deficient number, since it is larger than the sum of its proper divisors (623932839039).

1016803806081 is a wasteful number, since it uses less digits than its factorization.

1016803806081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311213.

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 1016803806081 in words is "one trillion, sixteen billion, eight hundred three million, eight hundred six thousand, eighty-one".