22577421420 has 72 divisors (see below), whose sum is σ = 68513084640. Its totient is φ = 6018163200.

The previous prime is 22577421389. The next prime is 22577421439. The reversal of 22577421420 is 2412477522.

22577421420 is a `hidden beast` number, since 2 + 2 + 577 + 42 + 1 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434596 + ... + 483764.

It is an arithmetic number, because the mean of its divisors is an integer number (951570620).

Almost surely, 2^22577421420 is an apocalyptic number.

22577421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22577421420 is an abundant number, since it is smaller than the sum of its proper divisors (45935663220).

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

22577421420 is a wasteful number, since it uses less digits than its factorization.

22577421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51735 (or 51730 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

Adding to 22577421420 its reverse (2412477522), we get a palindrome (24989898942).

The spelling of 22577421420 in words is "twenty-two billion, five hundred seventy-seven million, four hundred twenty-one thousand, four hundred twenty".