100554216356545 has 64 divisors (see below), whose sum is σ = 139406256783360. Its totient is φ = 68205060000000.

The previous prime is 100554216356537. The next prime is 100554216356611. The reversal of 100554216356545 is 545653612455001.

It is not a de Polignac number, because 100554216356545 - 2³ = 100554216356537 is a prime.

It is a super-2 number, since 2×100554216356545² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 100554216356492 and 100554216356501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 820782795 + ... + 820905295.

It is an arithmetic number, because the mean of its divisors is an integer number (2178222762240).

Almost surely, 2^{100554216356545} is an apocalyptic number.

It is an amenable number.

100554216356545 is a deficient number, since it is larger than the sum of its proper divisors (38852040426815).

100554216356545 is a wasteful number, since it uses less digits than its factorization.

100554216356545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123406.

The product of its (nonzero) digits is 10800000, while the sum is 52.

The spelling of 100554216356545 in words is "one hundred trillion, five hundred fifty-four billion, two hundred sixteen million, three hundred fifty-six thousand, five hundred forty-five".