1016426511663 has 4 divisors (see below), whose sum is σ = 1355235348888. Its totient is φ = 677617674440.

The previous prime is 1016426511647. The next prime is 1016426511673. The reversal of 1016426511663 is 3661156246101.

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

It is a cyclic number.

It is not a de Polignac number, because 1016426511663 - 2⁴ = 1016426511647 is a prime.

It is a super-2 number, since 2×1016426511663² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016426511673) 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, 169404418608 + ... + 169404418613.

It is an arithmetic number, because the mean of its divisors is an integer number (338808837222).

Almost surely, 2^{1016426511663} is an apocalyptic number.

1016426511663 is a deficient number, since it is larger than the sum of its proper divisors (338808837225).

1016426511663 is an equidigital number, since it uses as much as digits as its factorization.

1016426511663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338808837224.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 1016426511663 in words is "one trillion, sixteen billion, four hundred twenty-six million, five hundred eleven thousand, six hundred sixty-three".