661095248 has 20 divisors (see below), whose sum is σ = 1397315328. Its totient is φ = 300497760.

The previous prime is 661095221. The next prime is 661095251. The reversal of 661095248 is 842590166.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877936 + ... + 1878287.

Almost surely, 2^661095248 is an apocalyptic number.

It is an amenable number.

661095248 is an abundant number, since it is smaller than the sum of its proper divisors (736220080).

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

661095248 is a wasteful number, since it uses less digits than its factorization.

661095248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756242 (or 3756236 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 661095248 is about 25711.7725565547. The cubic root of 661095248 is about 871.1401126927.

The spelling of 661095248 in words is "six hundred sixty-one million, ninety-five thousand, two hundred forty-eight".