2406165521 has 8 divisors (see below), whose sum is σ = 2446097088. Its totient is φ = 2366550000.

The previous prime is 2406165511. The next prime is 2406165527. The reversal of 2406165521 is 1255616042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2406165521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2406165527) 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, 63635 + ... + 94136.

It is an arithmetic number, because the mean of its divisors is an integer number (305762136).

Almost surely, 2^2406165521 is an apocalyptic number.

It is an amenable number.

2406165521 is a deficient number, since it is larger than the sum of its proper divisors (39931567).

2406165521 is a wasteful number, since it uses less digits than its factorization.

2406165521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158023.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2406165521 is about 49052.6810786118. The cubic root of 2406165521 is about 1340.0114205977.

The spelling of 2406165521 in words is "two billion, four hundred six million, one hundred sixty-five thousand, five hundred twenty-one".