105071221515651 has 8 divisors (see below), whose sum is σ = 140139878661120. Its totient is φ = 70025022690312.

The previous prime is 105071221515599. The next prime is 105071221515677. The reversal of 105071221515651 is 156515122170501.

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

It is not a de Polignac number, because 105071221515651 - 2¹³ = 105071221507459 is a prime.

It is a super-2 number, since 2×105071221515651² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105071221515151) 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, 5614569115 + ... + 5614587828.

It is an arithmetic number, because the mean of its divisors is an integer number (17517484832640).

Almost surely, 2^{105071221515651} is an apocalyptic number.

105071221515651 is a deficient number, since it is larger than the sum of its proper divisors (35068657145469).

105071221515651 is a wasteful number, since it uses less digits than its factorization.

105071221515651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229160065.

The product of its (nonzero) digits is 105000, while the sum is 42.

The spelling of 105071221515651 in words is "one hundred five trillion, seventy-one billion, two hundred twenty-one million, five hundred fifteen thousand, six hundred fifty-one".