10101161565 has 32 divisors (see below), whose sum is σ = 19590134400. Its totient is φ = 4897532160.

The previous prime is 10101161491. The next prime is 10101161599. The reversal of 10101161565 is 56516110101.

It is not a de Polignac number, because 10101161565 - 2¹⁰ = 10101160541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3399580 + ... + 3402549.

It is an arithmetic number, because the mean of its divisors is an integer number (612191700).

Almost surely, 2^10101161565 is an apocalyptic number.

10101161565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10101161565 is a deficient number, since it is larger than the sum of its proper divisors (9488972835).

10101161565 is a wasteful number, since it uses less digits than its factorization.

10101161565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802154 (or 6802148 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 10101161565 its reverse (56516110101), we get a palindrome (66617271666).

The spelling of 10101161565 in words is "ten billion, one hundred one million, one hundred sixty-one thousand, five hundred sixty-five".