22647877020 has 144 divisors (see below), whose sum is σ = 75433988448. Its totient is φ = 5684152320.

The previous prime is 22647876997. The next prime is 22647877039. The reversal of 22647877020 is 2077874622.

It is a super-4 number, since 4×22647877020⁴ (a number of 43 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54441 + ... + 219680.

It is an arithmetic number, because the mean of its divisors is an integer number (523847142).

Almost surely, 2^22647877020 is an apocalyptic number.

22647877020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22647877020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37716994224).

22647877020 is an abundant number, since it is smaller than the sum of its proper divisors (52786111428).

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

22647877020 is a wasteful number, since it uses less digits than its factorization.

22647877020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274162 (or 274148 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 22647877020 in words is "twenty-two billion, six hundred forty-seven million, eight hundred seventy-seven thousand, twenty".