1473143351661 has 24 divisors (see below), whose sum is σ = 2215269440280. Its totient is φ = 942190494336.

The previous prime is 1473143351633. The next prime is 1473143351747. The reversal of 1473143351661 is 1661533413741.

1473143351661 is a `hidden beast` number, since 1 + 4 + 7 + 31 + 43 + 3 + 516 + 61 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 333333022500 + 1139810329161 = 577350^2 + 1067619^2 .

It is not a de Polignac number, because 1473143351661 - 2⁵ = 1473143351629 is a prime.

It is a super-2 number, since 2×1473143351661² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1473143351621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17934270 + ... + 18016223.

It is an arithmetic number, because the mean of its divisors is an integer number (92302893345).

Almost surely, 2^{1473143351661} is an apocalyptic number.

It is an amenable number.

1473143351661 is a deficient number, since it is larger than the sum of its proper divisors (742126088619).

1473143351661 is a wasteful number, since it uses less digits than its factorization.

1473143351661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35950685 (or 35950682 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 1473143351661 in words is "one trillion, four hundred seventy-three billion, one hundred forty-three million, three hundred fifty-one thousand, six hundred sixty-one".