16212143601 has 20 divisors (see below), whose sum is σ = 24236884672. Its totient is φ = 10799730648.

The previous prime is 16212143581. The next prime is 16212143609. The reversal of 16212143601 is 10634121261.

It is a happy number.

16212143601 is a `hidden beast` number, since 1 + 6 + 2 + 12 + 1 + 43 + 601 = 666.

It is not a de Polignac number, because 16212143601 - 2⁹ = 16212143089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16212143609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28740 + ... + 182346.

Almost surely, 2^16212143601 is an apocalyptic number.

It is an amenable number.

16212143601 is a deficient number, since it is larger than the sum of its proper divisors (8024741071).

16212143601 is a wasteful number, since it uses less digits than its factorization.

16212143601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154922 (or 154913 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 16212143601 its reverse (10634121261), we get a palindrome (26846264862).

The spelling of 16212143601 in words is "sixteen billion, two hundred twelve million, one hundred forty-three thousand, six hundred one".