1421176321161 has 63 divisors (see below), whose sum is σ = 2166354567741. Its totient is φ = 931893571224.

The previous prime is 1421176321133. The next prime is 1421176321181. The reversal of 1421176321161 is 1611236711241.

The square root of 1421176321161 is 1192131.

It is a perfect power (a square), and thus also a powerful number.

1421176321161 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 1 + 7 + 632 + 1 + 16 + 1 = 666.

It is not a de Polignac number, because 1421176321161 - 2⁵ = 1421176321129 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1421176321111) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 2156564650 + ... + 2156565308.

Almost surely, 2^{1421176321161} is an apocalyptic number.

1421176321161 is the 1192131-st square number.

1421176321161 is the 596066-th centered octagonal number.

It is an amenable number.

1421176321161 is a deficient number, since it is larger than the sum of its proper divisors (745178246580).

1421176321161 is an frugal number, since it uses more digits than its factorization.

1421176321161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 729 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

Multiplying 1421176321161 by its sum of digits (36), we get a square (51162347561796 = 7152786²).

The spelling of 1421176321161 in words is "one trillion, four hundred twenty-one billion, one hundred seventy-six million, three hundred twenty-one thousand, one hundred sixty-one".