105571159987 has 8 divisors (see below), whose sum is σ = 108184829904. Its totient is φ = 102980518368.

The previous prime is 105571159949. The next prime is 105571160027. The reversal of 105571159987 is 789951175501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105571159987 is a prime.

It is a super-2 number, since 2×105571159987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105571159907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5747793 + ... + 5766130.

It is an arithmetic number, because the mean of its divisors is an integer number (13523103738).

Almost surely, 2^105571159987 is an apocalyptic number.

105571159987 is a deficient number, since it is larger than the sum of its proper divisors (2613669917).

105571159987 is a wasteful number, since it uses less digits than its factorization.

105571159987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514149.

The product of its (nonzero) digits is 3969000, while the sum is 58.

The spelling of 105571159987 in words is "one hundred five billion, five hundred seventy-one million, one hundred fifty-nine thousand, nine hundred eighty-seven".