20730071622 has 64 divisors (see below), whose sum is σ = 45907190784. Its totient is φ = 6199182720.

The previous prime is 20730071573. The next prime is 20730071629. The reversal of 20730071622 is 22617003702.

It is a self number, because there is not a number n which added to its sum of digits gives 20730071622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20730071629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2971983 + ... + 2978949.

It is an arithmetic number, because the mean of its divisors is an integer number (717299856).

Almost surely, 2^20730071622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20730071622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22953595392).

20730071622 is an abundant number, since it is smaller than the sum of its proper divisors (25177119162).

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

20730071622 is a wasteful number, since it uses less digits than its factorization.

20730071622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053.

The product of its (nonzero) digits is 7056, while the sum is 30.

The spelling of 20730071622 in words is "twenty billion, seven hundred thirty million, seventy-one thousand, six hundred twenty-two".