155060661 has 16 divisors (see below), whose sum is σ = 241311744. Its totient is φ = 86720304.

The previous prime is 155060627. The next prime is 155060671. The reversal of 155060661 is 166060551.

155060661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155060661 - 2¹⁵ = 155027893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155060671) 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, 77565 + ... + 79538.

It is an arithmetic number, because the mean of its divisors is an integer number (15081984).

Almost surely, 2^155060661 is an apocalyptic number.

It is an amenable number.

155060661 is a deficient number, since it is larger than the sum of its proper divisors (86251083).

155060661 is a wasteful number, since it uses less digits than its factorization.

155060661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157160.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 155060661 is about 12452.3355640619. The cubic root of 155060661 is about 537.2386020119.

The spelling of 155060661 in words is "one hundred fifty-five million, sixty thousand, six hundred sixty-one".