1667016212052 has 12 divisors (see below), whose sum is σ = 3889704494816. Its totient is φ = 555672070680.

The previous prime is 1667016212051. The next prime is 1667016212063. The reversal of 1667016212052 is 2502126107661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1667016212052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667016212051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69459008824 + ... + 69459008847.

Almost surely, 2^{1667016212052} is an apocalyptic number.

1667016212052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1667016212052 is an abundant number, since it is smaller than the sum of its proper divisors (2222688282764).

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

1667016212052 is a wasteful number, since it uses less digits than its factorization.

1667016212052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138918017678 (or 138918017676 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 1667016212052 in words is "one trillion, six hundred sixty-seven billion, sixteen million, two hundred twelve thousand, fifty-two".