105616191490 has 16 divisors (see below), whose sum is σ = 193696110648. Its totient is φ = 41449373056.

The previous prime is 105616191481. The next prime is 105616191497. The reversal of 105616191490 is 94191616501.

It can be written as a sum of positive squares in 4 ways, for example, as 82441914129 + 23174277361 = 287127^2 + 152231^2 .

It is a super-2 number, since 2×105616191490² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105616191497) 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, 99637387 + ... + 99638446.

Almost surely, 2^105616191490 is an apocalyptic number.

105616191490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105616191490 is a deficient number, since it is larger than the sum of its proper divisors (88079919158).

105616191490 is a wasteful number, since it uses less digits than its factorization.

105616191490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199275893.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 105616191490 in words is "one hundred five billion, six hundred sixteen million, one hundred ninety-one thousand, four hundred ninety".