4155660 has 36 divisors (see below), whose sum is σ = 12606048. Its totient is φ = 1108128.

The previous prime is 4155659. The next prime is 4155673. The reversal of 4155660 is 665514.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11364 + ... + 11723.

It is an arithmetic number, because the mean of its divisors is an integer number (350168).

Almost surely, 2^4155660 is an apocalyptic number.

It is an amenable number.

4155660 is an abundant number, since it is smaller than the sum of its proper divisors (8450388).

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

4155660 is a wasteful number, since it uses less digits than its factorization.

4155660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23102 (or 23097 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4155660 is about 2038.5435977678. The cubic root of 4155660 is about 160.7730815562.

It can be divided in two parts, 41556 and 60, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 4155660 in words is "four million, one hundred fifty-five thousand, six hundred sixty".