61130666312 has 32 divisors (see below), whose sum is σ = 114886875000. Its totient is φ = 30494251008.

The previous prime is 61130666269. The next prime is 61130666321. The reversal of 61130666312 is 21366603116.

It can be written as a sum of positive squares in 4 ways, for example, as 46999638436 + 14131027876 = 216794^2 + 118874^2 .

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, 7080014 + ... + 7088642.

Almost surely, 2^61130666312 is an apocalyptic number.

It is an amenable number.

61130666312 is a deficient number, since it is larger than the sum of its proper divisors (53756208688).

61130666312 is a wasteful number, since it uses less digits than its factorization.

61130666312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593 (or 10589 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 61130666312 in words is "sixty-one billion, one hundred thirty million, six hundred sixty-six thousand, three hundred twelve".