2066496421 has 8 divisors (see below), whose sum is σ = 2386969344. Its totient is φ = 1768125120.

The previous prime is 2066496407. The next prime is 2066496431. The reversal of 2066496421 is 1246946602.

It is a happy number.

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

It is not a de Polignac number, because 2066496421 - 2⁵ = 2066496389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066496431) 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, 5525205 + ... + 5525578.

It is an arithmetic number, because the mean of its divisors is an integer number (298371168).

Almost surely, 2^2066496421 is an apocalyptic number.

It is an amenable number.

2066496421 is a deficient number, since it is larger than the sum of its proper divisors (320472923).

2066496421 is a wasteful number, since it uses less digits than its factorization.

2066496421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050811.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 2066496421 is about 45458.7331653666. The cubic root of 2066496421 is about 1273.7324675420.

The spelling of 2066496421 in words is "two billion, sixty-six million, four hundred ninety-six thousand, four hundred twenty-one".