2197659660827 has 8 divisors (see below), whose sum is σ = 2201107510800. Its totient is φ = 2194212154624.

The previous prime is 2197659660817. The next prime is 2197659660857. The reversal of 2197659660827 is 7280669567912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2197659660827 - 2¹⁰ = 2197659659803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197659660817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14693123 + ... + 14841939.

It is an arithmetic number, because the mean of its divisors is an integer number (275138438850).

Almost surely, 2^{2197659660827} is an apocalyptic number.

2197659660827 is a deficient number, since it is larger than the sum of its proper divisors (3447849973).

2197659660827 is a wasteful number, since it uses less digits than its factorization.

2197659660827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171885.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 2197659660827 in words is "two trillion, one hundred ninety-seven billion, six hundred fifty-nine million, six hundred sixty thousand, eight hundred twenty-seven".