100421342066 has 16 divisors (see below), whose sum is σ = 154802164608. Its totient is φ = 48828496800.

The previous prime is 100421342009. The next prime is 100421342101. The reversal of 100421342066 is 660243124001.

It is a super-2 number, since 2×100421342066² (a number of 23 digits) contains 22 as substring.

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, 1943390 + ... + 1994393.

It is an arithmetic number, because the mean of its divisors is an integer number (9675135288).

Almost surely, 2^100421342066 is an apocalyptic number.

100421342066 is a deficient number, since it is larger than the sum of its proper divisors (54380822542).

100421342066 is a wasteful number, since it uses less digits than its factorization.

100421342066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938137.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 100421342066 its reverse (660243124001), we get a palindrome (760664466067).

The spelling of 100421342066 in words is "one hundred billion, four hundred twenty-one million, three hundred forty-two thousand, sixty-six".