172227470552 has 8 divisors (see below), whose sum is σ = 322926507300. Its totient is φ = 86113735272.

The previous prime is 172227470531. The next prime is 172227470557. The reversal of 172227470552 is 255074722271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×172227470552² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172227470557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10764216902 + ... + 10764216917.

Almost surely, 2^172227470552 is an apocalyptic number.

It is an amenable number.

172227470552 is a deficient number, since it is larger than the sum of its proper divisors (150699036748).

172227470552 is a wasteful number, since it uses less digits than its factorization.

172227470552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21528433825 (or 21528433821 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 44.

The spelling of 172227470552 in words is "one hundred seventy-two billion, two hundred twenty-seven million, four hundred seventy thousand, five hundred fifty-two".