21772273364600 has 96 divisors (see below), whose sum is σ = 55227417786000. Its totient is φ = 7916471270400.

The previous prime is 21772273364579. The next prime is 21772273364617. The reversal of 21772273364600 is 646337227712.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24083972 + ... + 24971628.

Almost surely, 2^{21772273364600} is an apocalyptic number.

21772273364600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21772273364600 is an abundant number, since it is smaller than the sum of its proper divisors (33455144421400).

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

21772273364600 is a wasteful number, since it uses less digits than its factorization.

21772273364600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898833 (or 898824 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 21772273364600 in words is "twenty-one trillion, seven hundred seventy-two billion, two hundred seventy-three million, three hundred sixty-four thousand, six hundred".