66602622 has 16 divisors (see below), whose sum is σ = 135463680. Its totient is φ = 21824472.

The previous prime is 66602593. The next prime is 66602633. The reversal of 66602622 is 22620666.

It is a self number, because there is not a number n which added to its sum of digits gives 66602622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93718 + ... + 94425.

It is an arithmetic number, because the mean of its divisors is an integer number (8466480).

Almost surely, 2^66602622 is an apocalyptic number.

66602622 is an abundant number, since it is smaller than the sum of its proper divisors (68861058).

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

66602622 is a wasteful number, since it uses less digits than its factorization.

66602622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188207.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66602622 is about 8161.0429480551. The cubic root of 66602622 is about 405.3502472371.

The spelling of 66602622 in words is "sixty-six million, six hundred two thousand, six hundred twenty-two".