1866650424016 has 20 divisors (see below), whose sum is σ = 4133297367712. Its totient is φ = 799993038816.

The previous prime is 1866650423987. The next prime is 1866650424019. The reversal of 1866650424016 is 6104240566681.

It is a super-2 number, since 2×1866650424016² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866650424019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8333260710 + ... + 8333260933.

Almost surely, 2^{1866650424016} is an apocalyptic number.

1866650424016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1866650424016 is an abundant number, since it is smaller than the sum of its proper divisors (2266646943696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1866650424016 is a wasteful number, since it uses less digits than its factorization.

1866650424016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666521658 (or 16666521652 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 1866650424016 in words is "one trillion, eight hundred sixty-six billion, six hundred fifty million, four hundred twenty-four thousand, sixteen".