101664995 has 16 divisors (see below), whose sum is σ = 125065728. Its totient is φ = 79300320.

The previous prime is 101664977. The next prime is 101665001. The reversal of 101664995 is 599466101.

It is not a de Polignac number, because 101664995 - 2⁶ = 101664931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77132 + ... + 78438.

It is an arithmetic number, because the mean of its divisors is an integer number (7816608).

Almost surely, 2^101664995 is an apocalyptic number.

101664995 is a deficient number, since it is larger than the sum of its proper divisors (23400733).

101664995 is a wasteful number, since it uses less digits than its factorization.

101664995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 101664995 is about 10082.9060791024. The cubic root of 101664995 is about 466.7207910580.

The spelling of 101664995 in words is "one hundred one million, six hundred sixty-four thousand, nine hundred ninety-five".