20424155211611 has 8 divisors (see below), whose sum is σ = 20809610752320. Its totient is φ = 20038703156992.

The previous prime is 20424155211601. The next prime is 20424155211623. The reversal of 20424155211611 is 11611255142402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20424155211611 - 2³⁰ = 20423081469787 is a prime.

It is a super-2 number, since 2×20424155211611² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424155211601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13029035 + ... + 14512203.

It is an arithmetic number, because the mean of its divisors is an integer number (2601201344040).

Almost surely, 2^{20424155211611} is an apocalyptic number.

20424155211611 is a deficient number, since it is larger than the sum of its proper divisors (385455540709).

20424155211611 is a wasteful number, since it uses less digits than its factorization.

20424155211611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743045.

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 20424155211611 in words is "twenty trillion, four hundred twenty-four billion, one hundred fifty-five million, two hundred eleven thousand, six hundred eleven".