43198759666 has 16 divisors (see below), whose sum is σ = 67905661824. Its totient is φ = 20571600544.

The previous prime is 43198759621. The next prime is 43198759679. The reversal of 43198759666 is 66695789134.

It is a super-2 number, since 2×43198759666² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43198759598 and 43198759607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004526 + ... + 2025961.

It is an arithmetic number, because the mean of its divisors is an integer number (4244103864).

Almost surely, 2^43198759666 is an apocalyptic number.

43198759666 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

43198759666 is a deficient number, since it is larger than the sum of its proper divisors (24706902158).

43198759666 is a wasteful number, since it uses less digits than its factorization.

43198759666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030745.

The product of its digits is 58786560, while the sum is 64.

The spelling of 43198759666 in words is "forty-three billion, one hundred ninety-eight million, seven hundred fifty-nine thousand, six hundred sixty-six".