99695661 has 16 divisors (see below), whose sum is σ = 143962560. Its totient is φ = 61004160.

The previous prime is 99695653. The next prime is 99695669. The reversal of 99695661 is 16659699.

It is an interprime number because it is at equal distance from previous prime (99695653) and next prime (99695669).

It is not a de Polignac number, because 99695661 - 2³ = 99695653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99695669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (8997660).

Almost surely, 2^99695661 is an apocalyptic number.

It is an amenable number.

99695661 is a deficient number, since it is larger than the sum of its proper divisors (44266899).

99695661 is a wasteful number, since it uses less digits than its factorization.

99695661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14476.

The product of its digits is 787320, while the sum is 51.

The square root of 99695661 is about 9984.7714545702. The cubic root of 99695661 is about 463.6875327014.

The spelling of 99695661 in words is "ninety-nine million, six hundred ninety-five thousand, six hundred sixty-one".