172004553304652 has 6 divisors (see below), whose sum is σ = 301007968283148. Its totient is φ = 86002276652324.

The previous prime is 172004553304603. The next prime is 172004553304663. The reversal of 172004553304652 is 256403355400271.

It is a happy number.

It is a super-2 number, since 2×172004553304652² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172004553304597 and 172004553304606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500569163078 + ... + 21500569163085.

It is an arithmetic number, because the mean of its divisors is an integer number (50167994713858).

Almost surely, 2^{172004553304652} is an apocalyptic number.

It is an amenable number.

172004553304652 is a deficient number, since it is larger than the sum of its proper divisors (129003414978496).

172004553304652 is a wasteful number, since it uses less digits than its factorization.

172004553304652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43001138326167 (or 43001138326165 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 172004553304652 in words is "one hundred seventy-two trillion, four billion, five hundred fifty-three million, three hundred four thousand, six hundred fifty-two".