1916907164705 has 24 divisors (see below), whose sum is σ = 2501722354680. Its totient is φ = 1409380577280.

The previous prime is 1916907164633. The next prime is 1916907164723. The reversal of 1916907164705 is 5074617096191.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 177992859664 + 1738914305041 = 421892^2 + 1318679^2 .

It is not a de Polignac number, because 1916907164705 - 2³² = 1912612197409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4759616 + ... + 5146625.

It is an arithmetic number, because the mean of its divisors is an integer number (104238431445).

Almost surely, 2^{1916907164705} is an apocalyptic number.

It is an amenable number.

1916907164705 is a deficient number, since it is larger than the sum of its proper divisors (584815189975).

1916907164705 is a wasteful number, since it uses less digits than its factorization.

1916907164705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9906501 (or 9906488 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 1916907164705 in words is "one trillion, nine hundred sixteen billion, nine hundred seven million, one hundred sixty-four thousand, seven hundred five".