6354666166501 has 8 divisors (see below), whose sum is σ = 6404362317144. Its totient is φ = 6305018012160.

The previous prime is 6354666166481. The next prime is 6354666166517. The reversal of 6354666166501 is 1056616664536.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 694197244225 + 5660468922276 = 833185^2 + 2379174^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6354666166501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6354666166531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11733220 + ... + 12262861.

It is an arithmetic number, because the mean of its divisors is an integer number (800545289643).

Almost surely, 2^{6354666166501} is an apocalyptic number.

It is an amenable number.

6354666166501 is a deficient number, since it is larger than the sum of its proper divisors (49696150643).

6354666166501 is a wasteful number, since it uses less digits than its factorization.

6354666166501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998151.

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 6354666166501 in words is "six trillion, three hundred fifty-four billion, six hundred sixty-six million, one hundred sixty-six thousand, five hundred one".