6654999999997 has 2 divisors, whose sum is σ = 6654999999998. Its totient is φ = 6654999999996.

The previous prime is 6654999999983. The next prime is 6655000000021. The reversal of 6654999999997 is 7999999994566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3812720959161 + 2842279040836 = 1952619^2 + 1685906^2 .

It is a cyclic number.

It is not a de Polignac number, because 6654999999997 - 2¹⁵ = 6654999967229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6654999999497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327499999998 + 3327499999999.

It is an arithmetic number, because the mean of its divisors is an integer number (3327499999999).

Almost surely, 2^{6654999999997} is an apocalyptic number.

It is an amenable number.

6654999999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6654999999997 is an equidigital number, since it uses as much as digits as its factorization.

6654999999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216955473840, while the sum is 100.

The spelling of 6654999999997 in words is "six trillion, six hundred fifty-four billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".