161225602022552 has 16 divisors (see below), whose sum is σ = 302333167118160. Its totient is φ = 80603424124384.

The previous prime is 161225602022549. The next prime is 161225602022557. The reversal of 161225602022552 is 255220206522161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161225602022557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172037788 + ... + 1172175339.

It is an arithmetic number, because the mean of its divisors is an integer number (18895822944885).

Almost surely, 2^{161225602022552} is an apocalyptic number.

It is an amenable number.

161225602022552 is a deficient number, since it is larger than the sum of its proper divisors (141107565095608).

161225602022552 is a wasteful number, since it uses less digits than its factorization.

161225602022552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344221730 (or 2344221726 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 161225602022552 in words is "one hundred sixty-one trillion, two hundred twenty-five billion, six hundred two million, twenty-two thousand, five hundred fifty-two".