1640116695 has 32 divisors (see below), whose sum is σ = 3001743360. Its totient is φ = 749099520.

The previous prime is 1640116631. The next prime is 1640116703. The reversal of 1640116695 is 5966110461.

It is not a de Polignac number, because 1640116695 - 2⁶ = 1640116631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122911 + ... + 135599.

It is an arithmetic number, because the mean of its divisors is an integer number (93804480).

Almost surely, 2^1640116695 is an apocalyptic number.

1640116695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1640116695 is a deficient number, since it is larger than the sum of its proper divisors (1361626665).

1640116695 is a wasteful number, since it uses less digits than its factorization.

1640116695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1640116695 is about 40498.3542258201. The cubic root of 1640116695 is about 1179.3016779293.

The spelling of 1640116695 in words is "one billion, six hundred forty million, one hundred sixteen thousand, six hundred ninety-five".