148778530566 has 16 divisors (see below), whose sum is σ = 298107080688. Its totient is φ = 49501173600.

The previous prime is 148778530543. The next prime is 148778530591. The reversal of 148778530566 is 665035877841.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22913965 + ... + 22920456.

It is an arithmetic number, because the mean of its divisors is an integer number (18631692543).

Almost surely, 2^148778530566 is an apocalyptic number.

148778530566 is an abundant number, since it is smaller than the sum of its proper divisors (149328550122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148778530566 is a wasteful number, since it uses less digits than its factorization.

148778530566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45834967.

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 148778530566 in words is "one hundred forty-eight billion, seven hundred seventy-eight million, five hundred thirty thousand, five hundred sixty-six".