20622651442 has 8 divisors (see below), whose sum is σ = 31123756656. Its totient is φ = 10248065892.

The previous prime is 20622651383. The next prime is 20622651449. The reversal of 20622651442 is 24415622602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20622651398 and 20622651407.

It is not an unprimeable number, because it can be changed into a prime (20622651449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31629508 + ... + 31630159.

It is an arithmetic number, because the mean of its divisors is an integer number (3890469582).

Almost surely, 2^20622651442 is an apocalyptic number.

20622651442 is a deficient number, since it is larger than the sum of its proper divisors (10501105214).

20622651442 is a wasteful number, since it uses less digits than its factorization.

20622651442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63259832.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 20622651442 in words is "twenty billion, six hundred twenty-two million, six hundred fifty-one thousand, four hundred forty-two".