6742100666400 has 144 divisors (see below), whose sum is σ = 23940586641888. Its totient is φ = 1634448640000.

The previous prime is 6742100666393. The next prime is 6742100666419. The reversal of 6742100666400 is 46660012476.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127664901 + ... + 127717700.

It is an arithmetic number, because the mean of its divisors is an integer number (166254073902).

Almost surely, 2^{6742100666400} is an apocalyptic number.

6742100666400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6742100666400 is an abundant number, since it is smaller than the sum of its proper divisors (17198485975488).

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

6742100666400 is a wasteful number, since it uses less digits than its factorization.

6742100666400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255382635 (or 255382622 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

Adding to 6742100666400 its reverse (46660012476), we get a palindrome (6788760678876).

The spelling of 6742100666400 in words is "six trillion, seven hundred forty-two billion, one hundred million, six hundred sixty-six thousand, four hundred".