10420120544545 has 8 divisors (see below), whose sum is σ = 12511925711424. Its totient is φ = 8330909063664.

The previous prime is 10420120544489. The next prime is 10420120544621. The reversal of 10420120544545 is 54544502102401.

10420120544545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10420120544545 - 2⁹ = 10420120544033 is a prime.

It is a Duffinian 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, 648412659 + ... + 648428728.

It is an arithmetic number, because the mean of its divisors is an integer number (1563990713928).

Almost surely, 2^{10420120544545} is an apocalyptic number.

It is an amenable number.

10420120544545 is a deficient number, since it is larger than the sum of its proper divisors (2091805166879).

10420120544545 is a wasteful number, since it uses less digits than its factorization.

10420120544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296842999.

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 10420120544545 its reverse (54544502102401), we get a palindrome (64964622646946).

The spelling of 10420120544545 in words is "ten trillion, four hundred twenty billion, one hundred twenty million, five hundred forty-four thousand, five hundred forty-five".