8152161999901 has 4 divisors (see below), whose sum is σ = 8152240714272. Its totient is φ = 8152083285532.

The previous prime is 8152161999893. The next prime is 8152161999979. The reversal of 8152161999901 is 1099991612518.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8152161999901 - 2³ = 8152161999893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8152161999901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8152161999101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39201631 + ... + 39409036.

It is an arithmetic number, because the mean of its divisors is an integer number (2038060178568).

Almost surely, 2^{8152161999901} is an apocalyptic number.

It is an amenable number.

8152161999901 is a deficient number, since it is larger than the sum of its proper divisors (78714371).

8152161999901 is a wasteful number, since it uses less digits than its factorization.

8152161999901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78714370.

The product of its (nonzero) digits is 3149280, while the sum is 61.

The spelling of 8152161999901 in words is "eight trillion, one hundred fifty-two billion, one hundred sixty-one million, nine hundred ninety-nine thousand, nine hundred one".