201642623343 has 40 divisors (see below), whose sum is σ = 355355432960. Its totient is φ = 111507431760.

The previous prime is 201642623333. The next prime is 201642623359. The reversal of 201642623343 is 343326246102.

201642623343 is a `hidden beast` number, since 2 + 0 + 1 + 64 + 262 + 334 + 3 = 666.

It is not a de Polignac number, because 201642623343 - 2¹² = 201642619247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201642623298 and 201642623307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201642623323) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5718403 + ... + 5753556.

It is an arithmetic number, because the mean of its divisors is an integer number (8883885824).

Almost surely, 2^201642623343 is an apocalyptic number.

201642623343 is a deficient number, since it is larger than the sum of its proper divisors (153712809617).

201642623343 is a wasteful number, since it uses less digits than its factorization.

201642623343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472009 (or 11472000 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 201642623343 its reverse (343326246102), we get a palindrome (544968869445).

The spelling of 201642623343 in words is "two hundred one billion, six hundred forty-two million, six hundred twenty-three thousand, three hundred forty-three".