1667796116892 has 12 divisors (see below), whose sum is σ = 3891524272776. Its totient is φ = 555932038960.

The previous prime is 1667796116887. The next prime is 1667796116893. The reversal of 1667796116892 is 2986116977661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667796116893) 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, 69491504859 + ... + 69491504882.

It is an arithmetic number, because the mean of its divisors is an integer number (324293689398).

Almost surely, 2^{1667796116892} is an apocalyptic number.

1667796116892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1667796116892 is an abundant number, since it is smaller than the sum of its proper divisors (2223728155884).

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

1667796116892 is a wasteful number, since it uses less digits than its factorization.

1667796116892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138983009748 (or 138983009746 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 69.

The spelling of 1667796116892 in words is "one trillion, six hundred sixty-seven billion, seven hundred ninety-six million, one hundred sixteen thousand, eight hundred ninety-two".