16620522 has 8 divisors (see below), whose sum is σ = 33241056. Its totient is φ = 5540172.

The previous prime is 16620521. The next prime is 16620523. The reversal of 16620522 is 22502661.

It is an interprime number because it is at equal distance from previous prime (16620521) and next prime (16620523).

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

16620522 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 16620492 and 16620501.

It is not an unprimeable number, because it can be changed into a prime (16620521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385038 + ... + 1385049.

It is an arithmetic number, because the mean of its divisors is an integer number (4155132).

Almost surely, 2^16620522 is an apocalyptic number.

16620522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16620522 is a wasteful number, since it uses less digits than its factorization.

16620522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770092.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 16620522 is about 4076.8274430003. The cubic root of 16620522 is about 255.2005189437.

The spelling of 16620522 in words is "sixteen million, six hundred twenty thousand, five hundred twenty-two".