6697081021248 has 140 divisors (see below), whose sum is σ = 20056909989732. Its totient is φ = 2209346150400.

The previous prime is 6697081021187. The next prime is 6697081021271. The reversal of 6697081021248 is 8421201807966.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3071438512704 + 3625642508544 = 1752552^2 + 1904112^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 6697081021194 and 6697081021203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6156303 + ... + 7161998.

Almost surely, 2^{6697081021248} is an apocalyptic number.

It is an amenable number.

6697081021248 is an abundant number, since it is smaller than the sum of its proper divisors (13359828968484).

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

6697081021248 is a wasteful number, since it uses less digits than its factorization.

6697081021248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318422 (or 13318403 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 6697081021248 in words is "six trillion, six hundred ninety-seven billion, eighty-one million, twenty-one thousand, two hundred forty-eight".