161370000504 has 96 divisors (see below), whose sum is σ = 452246230800. Its totient is φ = 51920010240.

The previous prime is 161370000503. The next prime is 161370000509. The reversal of 161370000504 is 405000073161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161370000503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8783392 + ... + 8801744.

Almost surely, 2^161370000504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161370000504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226123115400).

161370000504 is an abundant number, since it is smaller than the sum of its proper divisors (290876230296).

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

161370000504 is a wasteful number, since it uses less digits than its factorization.

161370000504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22605 (or 22598 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

Adding to 161370000504 its reverse (405000073161), we get a palindrome (566370073665).

The spelling of 161370000504 in words is "one hundred sixty-one billion, three hundred seventy million, five hundred four", and thus it is an aban number.