155006660 has 48 divisors (see below), whose sum is σ = 341058816. Its totient is φ = 59064192.

The previous prime is 155006659. The next prime is 155006671. The reversal of 155006660 is 66600551.

155006660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 145289 + ... + 146351.

It is an arithmetic number, because the mean of its divisors is an integer number (7105392).

Almost surely, 2^155006660 is an apocalyptic number.

155006660 is a gapful number since it is divisible by the number (10) 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 155006660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170529408).

155006660 is an abundant number, since it is smaller than the sum of its proper divisors (186052156).

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

155006660 is a wasteful number, since it uses less digits than its factorization.

155006660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 155006660 is about 12450.1670671522. The cubic root of 155006660 is about 537.1762290240.

The spelling of 155006660 in words is "one hundred fifty-five million, six thousand, six hundred sixty".