161010204625 has 16 divisors (see below), whose sum is σ = 201041568000. Its totient is φ = 128743527600.

The previous prime is 161010204623. The next prime is 161010204659. The reversal of 161010204625 is 526402010161.

It is not a de Polignac number, because 161010204625 - 2¹ = 161010204623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161010204593 and 161010204602.

It is not an unprimeable number, because it can be changed into a prime (161010204623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72307 + ... + 572056.

It is an arithmetic number, because the mean of its divisors is an integer number (12565098000).

Almost surely, 2^161010204625 is an apocalyptic number.

It is an amenable number.

161010204625 is a deficient number, since it is larger than the sum of its proper divisors (40031363375).

161010204625 is an equidigital number, since it uses as much as digits as its factorization.

161010204625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646377 (or 646367 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 161010204625 its reverse (526402010161), we get a palindrome (687412214786).

The spelling of 161010204625 in words is "one hundred sixty-one billion, ten million, two hundred four thousand, six hundred twenty-five".