161078660372 has 24 divisors (see below), whose sum is σ = 341107752384. Its totient is φ = 64972904832.

The previous prime is 161078660357. The next prime is 161078660383. The reversal of 161078660372 is 273066870161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169199798 + ... + 169200749.

It is an arithmetic number, because the mean of its divisors is an integer number (14212823016).

Almost surely, 2^161078660372 is an apocalyptic number.

It is an amenable number.

161078660372 is an abundant number, since it is smaller than the sum of its proper divisors (180029092012).

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

161078660372 is a wasteful number, since it uses less digits than its factorization.

161078660372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338400575 (or 338400573 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 161078660372 in words is "one hundred sixty-one billion, seventy-eight million, six hundred sixty thousand, three hundred seventy-two".