145666560 has 160 divisors (see below), whose sum is σ = 501842880. Its totient is φ = 35831808.

The previous prime is 145666541. The next prime is 145666601. The reversal of 145666560 is 65666541.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 99111 + ... + 100569.

It is an arithmetic number, because the mean of its divisors is an integer number (3136518).

Almost surely, 2^145666560 is an apocalyptic number.

145666560 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 145666560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250921440).

145666560 is an abundant number, since it is smaller than the sum of its proper divisors (356176320).

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

145666560 is a wasteful number, since it uses less digits than its factorization.

145666560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 145666560 is about 12069.2402412082. The cubic root of 145666560 is about 526.1625755852.

The spelling of 145666560 in words is "one hundred forty-five million, six hundred sixty-six thousand, five hundred sixty".