9805165150015 has 16 divisors (see below), whose sum is σ = 12386966248800. Its totient is φ = 7430386372992.

The previous prime is 9805165150007. The next prime is 9805165150019. The reversal of 9805165150015 is 5100515615089.

It is a cyclic number.

It is not a de Polignac number, because 9805165150015 - 2³ = 9805165150007 is a prime.

It is a super-2 number, since 2×9805165150015² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9805165150019) 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, 5435020 + ... + 7010689.

It is an arithmetic number, because the mean of its divisors is an integer number (774185390550).

Almost surely, 2^{9805165150015} is an apocalyptic number.

9805165150015 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9805165150015 is a deficient number, since it is larger than the sum of its proper divisors (2581801098785).

9805165150015 is a wasteful number, since it uses less digits than its factorization.

9805165150015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454026.

The product of its (nonzero) digits is 270000, while the sum is 46.

The spelling of 9805165150015 in words is "nine trillion, eight hundred five billion, one hundred sixty-five million, one hundred fifty thousand, fifteen".