100066561051565 has 8 divisors (see below), whose sum is σ = 120079944177408. Its totient is φ = 80053201564240.

The previous prime is 100066561051559. The next prime is 100066561051603. The reversal of 100066561051565 is 565150165660001.

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

It is not a de Polignac number, because 100066561051565 - 2⁴ = 100066561051549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5355644 + ... + 15126666.

It is an arithmetic number, because the mean of its divisors is an integer number (15009993022176).

Almost surely, 2^{100066561051565} is an apocalyptic number.

It is an amenable number.

100066561051565 is a deficient number, since it is larger than the sum of its proper divisors (20013383125843).

100066561051565 is an equidigital number, since it uses as much as digits as its factorization.

100066561051565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819259.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 100066561051565 in words is "one hundred trillion, sixty-six billion, five hundred sixty-one million, fifty-one thousand, five hundred sixty-five".