320042564026 has 16 divisors (see below), whose sum is σ = 508800799080. Its totient is φ = 150460738560.

The previous prime is 320042564021. The next prime is 320042564053. The reversal of 320042564026 is 620465240023.

It can be written as a sum of positive squares in 4 ways, for example, as 315842876001 + 4199688025 = 561999^2 + 64805^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 320042563982 and 320042564000.

It is not an unprimeable number, because it can be changed into a prime (320042564021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4574991 + ... + 4644418.

Almost surely, 2^320042564026 is an apocalyptic number.

320042564026 is a deficient number, since it is larger than the sum of its proper divisors (188758235054).

320042564026 is a wasteful number, since it uses less digits than its factorization.

320042564026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220449.

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 320042564026 in words is "three hundred twenty billion, forty-two million, five hundred sixty-four thousand, twenty-six".