661176248 has 32 divisors (see below), whose sum is σ = 1256754960. Its totient is φ = 326073600.

The previous prime is 661176163. The next prime is 661176251. The reversal of 661176248 is 842671166.

It is a super-4 number, since 4×661176248⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176798 + ... + 180498.

Almost surely, 2^661176248 is an apocalyptic number.

It is an amenable number.

661176248 is a deficient number, since it is larger than the sum of its proper divisors (595578712).

661176248 is a wasteful number, since it uses less digits than its factorization.

661176248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007 (or 4003 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 661176248 is about 25713.3476622551. The cubic root of 661176248 is about 871.1756897485.

The spelling of 661176248 in words is "six hundred sixty-one million, one hundred seventy-six thousand, two hundred forty-eight".