1662436640104 has 8 divisors (see below), whose sum is σ = 3117068700210. Its totient is φ = 831218320048.

The previous prime is 1662436640093. The next prime is 1662436640119. The reversal of 1662436640104 is 4010466342661.

It can be written as a sum of positive squares in only one way, i.e., 1401387175204 + 261049464900 = 1183802^2 + 510930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1662436640104² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103902289999 + ... + 103902290014.

Almost surely, 2^{1662436640104} is an apocalyptic number.

It is an amenable number.

1662436640104 is a deficient number, since it is larger than the sum of its proper divisors (1454632060106).

1662436640104 is a wasteful number, since it uses less digits than its factorization.

1662436640104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207804580019 (or 207804580015 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 1662436640104 in words is "one trillion, six hundred sixty-two billion, four hundred thirty-six million, six hundred forty thousand, one hundred four".