105156700891 has 8 divisors (see below), whose sum is σ = 114720300864. Its totient is φ = 95593750920.

The previous prime is 105156700867. The next prime is 105156700907. The reversal of 105156700891 is 198007651501.

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

It is a cyclic number.

It is not a de Polignac number, because 105156700891 - 2³³ = 96566766299 is a prime.

It is a super-2 number, since 2×105156700891² (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 (105156700091) 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, 213636 + ... + 505918.

It is an arithmetic number, because the mean of its divisors is an integer number (14340037608).

Almost surely, 2^105156700891 is an apocalyptic number.

105156700891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

105156700891 is a deficient number, since it is larger than the sum of its proper divisors (9563599973).

105156700891 is a wasteful number, since it uses less digits than its factorization.

105156700891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325001.

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 105156700891 in words is "one hundred five billion, one hundred fifty-six million, seven hundred thousand, eight hundred ninety-one".