1667344057896 has 32 divisors (see below), whose sum is σ = 4547301976800. Its totient is φ = 505255775040.

The previous prime is 1667344057853. The next prime is 1667344057931. The reversal of 1667344057896 is 6987504437661.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

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 7 ways as a sum of consecutive naturals, for example, 3157848331 + ... + 3157848858.

It is an arithmetic number, because the mean of its divisors is an integer number (142103186775).

Almost surely, 2^{1667344057896} is an apocalyptic number.

It is an amenable number.

1667344057896 is an abundant number, since it is smaller than the sum of its proper divisors (2879957918904).

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

1667344057896 is a wasteful number, since it uses less digits than its factorization.

1667344057896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315697209 (or 6315697205 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 1667344057896 in words is "one trillion, six hundred sixty-seven billion, three hundred forty-four million, fifty-seven thousand, eight hundred ninety-six".