1546645424164 has 9 divisors (see below), whose sum is σ = 2706633845041. Its totient is φ = 773321468440.

The previous prime is 1546645424147. The next prime is 1546645424167. The reversal of 1546645424164 is 4614245466451.

The square root of 1546645424164 is 1243642.

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

It can be written as a sum of positive squares in only one way, i.e., 254058337764 + 1292587086400 = 504042^2 + 1136920^2 .

It is a super-2 number, since 2×1546645424164² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1546645424167) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 2176374 + ... + 2798194.

Almost surely, 2^{1546645424164} is an apocalyptic number.

1546645424164 is the 1243642-nd square number.

It is an amenable number.

1546645424164 is a deficient number, since it is larger than the sum of its proper divisors (1159988420877).

1546645424164 is an frugal number, since it uses more digits than its factorization.

1546645424164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243646 (or 621823 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 52.

The spelling of 1546645424164 in words is "one trillion, five hundred forty-six billion, six hundred forty-five million, four hundred twenty-four thousand, one hundred sixty-four".