6997166131896 has 24 divisors (see below), whose sum is σ = 18950658274080. Its totient is φ = 2332388710608.

The previous prime is 6997166131877. The next prime is 6997166131951. The reversal of 6997166131896 is 6981316617996.

6997166131896 is a `hidden beast` number, since 69 + 9 + 7 + 166 + 1 + 318 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (72), and also a Moran number because the ratio is a prime number: 97182862943 = 6997166131896 / (6 + 9 + 9 + 7 + 1 + 6 + 6 + 1 + 3 + 1 + 8 + 9 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48591431400 + ... + 48591431543.

It is an arithmetic number, because the mean of its divisors is an integer number (789610761420).

Almost surely, 2^{6997166131896} is an apocalyptic number.

It is an amenable number.

6997166131896 is an abundant number, since it is smaller than the sum of its proper divisors (11953492142184).

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

6997166131896 is a wasteful number, since it uses less digits than its factorization.

6997166131896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97182862955 (or 97182862948 counting only the distinct ones).

The product of its digits is 158723712, while the sum is 72.

The spelling of 6997166131896 in words is "six trillion, nine hundred ninety-seven billion, one hundred sixty-six million, one hundred thirty-one thousand, eight hundred ninety-six".