661141348 has 48 divisors (see below), whose sum is σ = 1382621184. Its totient is φ = 270468000.

The previous prime is 661141331. The next prime is 661141387. The reversal of 661141348 is 843141166.

661141348 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, 482961 + ... + 484327.

It is an arithmetic number, because the mean of its divisors is an integer number (28804608).

Almost surely, 2^661141348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 661141348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691310592).

661141348 is an abundant number, since it is smaller than the sum of its proper divisors (721479836).

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

661141348 is a wasteful number, since it uses less digits than its factorization.

661141348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 661141348 is about 25712.6690174319. The cubic root of 661141348 is about 871.1603612252.

The spelling of 661141348 in words is "six hundred sixty-one million, one hundred forty-one thousand, three hundred forty-eight".