20622642436 has 24 divisors (see below), whose sum is σ = 39468713760. Its totient is φ = 9350544000.

The previous prime is 20622642419. The next prime is 20622642497. The reversal of 20622642436 is 63424622602.

It is a super-3 number, since 3×20622642436³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20622642395 and 20622642404.

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, 566766 + ... + 602053.

It is an arithmetic number, because the mean of its divisors is an integer number (1644529740).

Almost surely, 2^20622642436 is an apocalyptic number.

It is an amenable number.

20622642436 is a deficient number, since it is larger than the sum of its proper divisors (18846071324).

20622642436 is a wasteful number, since it uses less digits than its factorization.

20622642436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169235 (or 1169233 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 20622642436 in words is "twenty billion, six hundred twenty-two million, six hundred forty-two thousand, four hundred thirty-six".