20624220622 has 4 divisors (see below), whose sum is σ = 30936330936. Its totient is φ = 10312110310.

The previous prime is 20624220613. The next prime is 20624220637. The reversal of 20624220622 is 22602242602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5156055154 + ... + 5156055157.

It is an arithmetic number, because the mean of its divisors is an integer number (7734082734).

Almost surely, 2^20624220622 is an apocalyptic number.

20624220622 is a deficient number, since it is larger than the sum of its proper divisors (10312110314).

20624220622 is a wasteful number, since it uses less digits than its factorization.

20624220622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10312110313.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 20624220622 in words is "twenty billion, six hundred twenty-four million, two hundred twenty thousand, six hundred twenty-two".