108445255607021 has 4 divisors (see below), whose sum is σ = 109051095024000. Its totient is φ = 107839416190044.

The previous prime is 108445255607011. The next prime is 108445255607033. The reversal of 108445255607021 is 120706552544801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108445255607021 - 2³⁰ = 108444181865197 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 (108445255607011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302919708221 + ... + 302919708578.

It is an arithmetic number, because the mean of its divisors is an integer number (27262773756000).

Almost surely, 2^{108445255607021} is an apocalyptic number.

It is an amenable number.

108445255607021 is a deficient number, since it is larger than the sum of its proper divisors (605839416979).

108445255607021 is an equidigital number, since it uses as much as digits as its factorization.

108445255607021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605839416978.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 108445255607021 in words is "one hundred eight trillion, four hundred forty-five billion, two hundred fifty-five million, six hundred seven thousand, twenty-one".