161064703338 has 96 divisors (see below), whose sum is σ = 432834072768. Its totient is φ = 39374092800.

The previous prime is 161064703337. The next prime is 161064703339. The reversal of 161064703338 is 833307460161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161064703337) and next prime (161064703339).

It is a super-2 number, since 2×161064703338² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 161064703338.

It is not an unprimeable number, because it can be changed into a prime (161064703337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1409833 + ... + 1519788.

It is an arithmetic number, because the mean of its divisors is an integer number (4508688258).

Almost surely, 2^161064703338 is an apocalyptic number.

161064703338 is an abundant number, since it is smaller than the sum of its proper divisors (271769369430).

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

161064703338 is a wasteful number, since it uses less digits than its factorization.

161064703338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929668 (or 2929661 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 161064703338 in words is "one hundred sixty-one billion, sixty-four million, seven hundred three thousand, three hundred thirty-eight".