155630078898 has 16 divisors (see below), whose sum is σ = 355725894720. Its totient is φ = 44465736816.

The previous prime is 155630078893. The next prime is 155630078927. The reversal of 155630078898 is 898870036551.

It is not an unprimeable number, because it can be changed into a prime (155630078893) by changing a digit.

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, 1852738993 + ... + 1852739076.

It is an arithmetic number, because the mean of its divisors is an integer number (22232868420).

Almost surely, 2^155630078898 is an apocalyptic number.

155630078898 is an abundant number, since it is smaller than the sum of its proper divisors (200095815822).

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

155630078898 is a wasteful number, since it uses less digits than its factorization.

155630078898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705478081.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 155630078898 in words is "one hundred fifty-five billion, six hundred thirty million, seventy-eight thousand, eight hundred ninety-eight".