161411455446428 has 96 divisors (see below), whose sum is σ = 326852228118528. Its totient is φ = 69021231206400.

The previous prime is 161411455446427. The next prime is 161411455446463. The reversal of 161411455446428 is 824644554114161.

It is a super-2 number, since 2×161411455446428² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161411455446427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615151676 + ... + 615414012.

It is an arithmetic number, because the mean of its divisors is an integer number (3404710709568).

Almost surely, 2^{161411455446428} is an apocalyptic number.

It is an amenable number.

161411455446428 is an abundant number, since it is smaller than the sum of its proper divisors (165440772672100).

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

161411455446428 is a wasteful number, since it uses less digits than its factorization.

161411455446428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272403 (or 272401 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 56.

The spelling of 161411455446428 in words is "one hundred sixty-one trillion, four hundred eleven billion, four hundred fifty-five million, four hundred forty-six thousand, four hundred twenty-eight".