1916651005 has 8 divisors (see below), whose sum is σ = 2304951552. Its totient is φ = 1530007248.

The previous prime is 1916650979. The next prime is 1916651017. The reversal of 1916651005 is 5001566191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916651005 - 2¹¹ = 1916648957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411649 + ... + 416278.

It is an arithmetic number, because the mean of its divisors is an integer number (288118944).

Almost surely, 2^1916651005 is an apocalyptic number.

It is an amenable number.

1916651005 is a deficient number, since it is larger than the sum of its proper divisors (388300547).

1916651005 is an equidigital number, since it uses as much as digits as its factorization.

1916651005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828395.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 1916651005 is about 43779.5729193422. The cubic root of 1916651005 is about 1242.1699355522.

The spelling of 1916651005 in words is "one billion, nine hundred sixteen million, six hundred fifty-one thousand, five".