147388806561 has 32 divisors (see below), whose sum is σ = 205106503680. Its totient is φ = 94037961600.

The previous prime is 147388806559. The next prime is 147388806629. The reversal of 147388806561 is 165608883741.

It is a happy number.

It is not a de Polignac number, because 147388806561 - 2¹ = 147388806559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147388806161) 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, 7279510 + ... + 7299728.

It is an arithmetic number, because the mean of its divisors is an integer number (6409578240).

Almost surely, 2^147388806561 is an apocalyptic number.

It is an amenable number.

147388806561 is a deficient number, since it is larger than the sum of its proper divisors (57717697119).

147388806561 is a wasteful number, since it uses less digits than its factorization.

147388806561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21117.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 147388806561 in words is "one hundred forty-seven billion, three hundred eighty-eight million, eight hundred six thousand, five hundred sixty-one".