155666568096 has 192 divisors, whose sum is σ = 491785136640. Its totient is φ = 47619947520.

The previous prime is 155666568089. The next prime is 155666568181. The reversal of 155666568096 is 690865666551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903081 + ... + 1983191.

It is an arithmetic number, because the mean of its divisors is an integer number (2561380920).

Almost surely, 2^155666568096 is an apocalyptic number.

155666568096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155666568096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245892568320).

155666568096 is an abundant number, since it is smaller than the sum of its proper divisors (336118568544).

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

155666568096 is a wasteful number, since it uses less digits than its factorization.

155666568096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80316 (or 80302 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 63.

The spelling of 155666568096 in words is "one hundred fifty-five billion, six hundred sixty-six million, five hundred sixty-eight thousand, ninety-six".