155878389204 has 48 divisors (see below), whose sum is σ = 386053113600. Its totient is φ = 48783430656.

The previous prime is 155878389203. The next prime is 155878389209. The reversal of 155878389204 is 402983878551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155878389203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850684 + ... + 1017555.

It is an arithmetic number, because the mean of its divisors is an integer number (8042773200).

Almost surely, 2^155878389204 is an apocalyptic number.

It is an amenable number.

155878389204 is an abundant number, since it is smaller than the sum of its proper divisors (230174724396).

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

155878389204 is a wasteful number, since it uses less digits than its factorization.

155878389204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868672 (or 1868670 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 155878389204 in words is "one hundred fifty-five billion, eight hundred seventy-eight million, three hundred eighty-nine thousand, two hundred four".