4016252636421 has 4 divisors (see below), whose sum is σ = 5355003515232. Its totient is φ = 2677501757612.

The previous prime is 4016252636381. The next prime is 4016252636441. The reversal of 4016252636421 is 1246362526104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4016252636421 - 2⁹ = 4016252635909 is a prime.

It is a super-3 number, since 3×4016252636421³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4016252636441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669375439401 + ... + 669375439406.

It is an arithmetic number, because the mean of its divisors is an integer number (1338750878808).

Almost surely, 2^{4016252636421} is an apocalyptic number.

It is an amenable number.

4016252636421 is a deficient number, since it is larger than the sum of its proper divisors (1338750878811).

4016252636421 is a wasteful number, since it uses less digits than its factorization.

4016252636421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338750878810.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 4016252636421 in words is "four trillion, sixteen billion, two hundred fifty-two million, six hundred thirty-six thousand, four hundred twenty-one".