1663170397652 has 12 divisors (see below), whose sum is σ = 2913936500160. Its totient is φ = 830617111896.

The previous prime is 1663170397631. The next prime is 1663170397661. The reversal of 1663170397652 is 2567930713661.

It is a super-2 number, since 2×1663170397652² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242017868 + ... + 242024739.

It is an arithmetic number, because the mean of its divisors is an integer number (242828041680).

Almost surely, 2^{1663170397652} is an apocalyptic number.

It is an amenable number.

1663170397652 is a deficient number, since it is larger than the sum of its proper divisors (1250766102508).

1663170397652 is a wasteful number, since it uses less digits than its factorization.

1663170397652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484043470 (or 484043468 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 1663170397652 in words is "one trillion, six hundred sixty-three billion, one hundred seventy million, three hundred ninety-seven thousand, six hundred fifty-two".