1669790252448 has 48 divisors (see below), whose sum is σ = 4870221572160. Its totient is φ = 556596750528.

The previous prime is 1669790252441. The next prime is 1669790252461. The reversal of 1669790252448 is 8442520979661.

1669790252448 is a `hidden beast` number, since 1 + 6 + 69 + 7 + 9 + 0 + 2 + 524 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1669790252441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 966312940 + ... + 966314667.

It is an arithmetic number, because the mean of its divisors is an integer number (101462949420).

Almost surely, 2^{1669790252448} is an apocalyptic number.

1669790252448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1669790252448 is an abundant number, since it is smaller than the sum of its proper divisors (3200431319712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669790252448 is a wasteful number, since it uses less digits than its factorization.

1669790252448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932627626 (or 1932627612 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 1669790252448 in words is "one trillion, six hundred sixty-nine billion, seven hundred ninety million, two hundred fifty-two thousand, four hundred forty-eight".