148556778942 has 32 divisors (see below), whose sum is σ = 349056489600. Its totient is φ = 41554343520.

The previous prime is 148556778917. The next prime is 148556778971. The reversal of 148556778942 is 249877655841.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86570692 + ... + 86572407.

It is an arithmetic number, because the mean of its divisors is an integer number (10908015300).

Almost surely, 2^148556778942 is an apocalyptic number.

148556778942 is an abundant number, since it is smaller than the sum of its proper divisors (200499710658).

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

148556778942 is a wasteful number, since it uses less digits than its factorization.

148556778942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173143128.

The product of its digits is 135475200, while the sum is 66.

The spelling of 148556778942 in words is "one hundred forty-eight billion, five hundred fifty-six million, seven hundred seventy-eight thousand, nine hundred forty-two".