161502024552 has 64 divisors (see below), whose sum is σ = 441179040960. Its totient is φ = 48860121600.

The previous prime is 161502024503. The next prime is 161502024569. The reversal of 161502024552 is 255420205161.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337149 + ... + 660812.

It is an arithmetic number, because the mean of its divisors is an integer number (6893422515).

Almost surely, 2^161502024552 is an apocalyptic number.

161502024552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161502024552 is an abundant number, since it is smaller than the sum of its proper divisors (279677016408).

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

161502024552 is a wasteful number, since it uses less digits than its factorization.

161502024552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998594 (or 998590 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 161502024552 in words is "one hundred sixty-one billion, five hundred two million, twenty-four thousand, five hundred fifty-two".