1908166500496 has 45 divisors (see below), whose sum is σ = 3718055690571. Its totient is φ = 948698693376.

The previous prime is 1908166500481. The next prime is 1908166500517. The reversal of 1908166500496 is 6940056618091.

The square root of 1908166500496 is 1381364.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1336926096 + 1906829574400 = 36564^2 + 1380880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1088513956 + ... + 1088515708.

Almost surely, 2^{1908166500496} is an apocalyptic number.

1908166500496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1908166500496 is the 1381364-th square number.

It is an amenable number.

1908166500496 is a deficient number, since it is larger than the sum of its proper divisors (1809889190075).

1908166500496 is an frugal number, since it uses more digits than its factorization.

1908166500496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1908166500496 in words is "one trillion, nine hundred eight billion, one hundred sixty-six million, five hundred thousand, four hundred ninety-six".