1662110163554 has 16 divisors (see below), whose sum is σ = 2505960682200. Its totient is φ = 826797932544.

The previous prime is 1662110163503. The next prime is 1662110163557. The reversal of 1662110163554 is 4553610112661.

It can be written as a sum of positive squares in 4 ways, for example, as 1401323250625 + 260786912929 = 1183775^2 + 510673^2 .

It is a super-2 number, since 2×1662110163554² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1662110163557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1582739 + ... + 2414390.

Almost surely, 2^{1662110163554} is an apocalyptic number.

1662110163554 is a deficient number, since it is larger than the sum of its proper divisors (843850518646).

1662110163554 is a wasteful number, since it uses less digits than its factorization.

1662110163554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998197.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1662110163554 in words is "one trillion, six hundred sixty-two billion, one hundred ten million, one hundred sixty-three thousand, five hundred fifty-four".