1016623715641 has 4 divisors (see below), whose sum is σ = 1016635453812. Its totient is φ = 1016611977472.

The previous prime is 1016623715603. The next prime is 1016623715743. The reversal of 1016623715641 is 1465173266101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 507198928041 + 509424787600 = 712179^2 + 713740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016623715641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016623715941) 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, 5738200 + ... + 5912713.

It is an arithmetic number, because the mean of its divisors is an integer number (254158863453).

Almost surely, 2^{1016623715641} is an apocalyptic number.

It is an amenable number.

1016623715641 is a deficient number, since it is larger than the sum of its proper divisors (11738171).

1016623715641 is an equidigital number, since it uses as much as digits as its factorization.

1016623715641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11738170.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 1016623715641 in words is "one trillion, sixteen billion, six hundred twenty-three million, seven hundred fifteen thousand, six hundred forty-one".