65042223545 has 32 divisors (see below), whose sum is σ = 85996953504. Its totient is φ = 46928793600.

The previous prime is 65042223541. The next prime is 65042223551. The reversal of 65042223545 is 54532224056.

65042223545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 4712547904 + 60329675641 = 68648^2 + 245621^2 .

It is not a de Polignac number, because 65042223545 - 2² = 65042223541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65042223499 and 65042223508.

It is not an unprimeable number, because it can be changed into a prime (65042223541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791075 + ... + 869415.

It is an arithmetic number, because the mean of its divisors is an integer number (2687404797).

Almost surely, 2^65042223545 is an apocalyptic number.

65042223545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65042223545 is a deficient number, since it is larger than the sum of its proper divisors (20954729959).

65042223545 is a wasteful number, since it uses less digits than its factorization.

65042223545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78653.

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 65042223545 in words is "sixty-five billion, forty-two million, two hundred twenty-three thousand, five hundred forty-five".