1297089160668 has 144 divisors (see below), whose sum is σ = 4011282888704. Its totient is φ = 358642105920.

The previous prime is 1297089160663. The next prime is 1297089160687. The reversal of 1297089160668 is 8660619807921.

1297089160668 is a `hidden beast` number, since 12 + 9 + 7 + 0 + 8 + 9 + 1 + 606 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297089160663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2863855 + ... + 3285702.

Almost surely, 2^{1297089160668} is an apocalyptic number.

1297089160668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1297089160668 is an abundant number, since it is smaller than the sum of its proper divisors (2714193728036).

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

1297089160668 is a wasteful number, since it uses less digits than its factorization.

1297089160668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149614 (or 6149600 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1297089160668 in words is "one trillion, two hundred ninety-seven billion, eighty-nine million, one hundred sixty thousand, six hundred sixty-eight".