1305616400612 has 6 divisors (see below), whose sum is σ = 2284828701078. Its totient is φ = 652808200304.

The previous prime is 1305616400609. The next prime is 1305616400659. The reversal of 1305616400612 is 2160046165031.

It can be written as a sum of positive squares in only one way, i.e., 1131640653796 + 173975746816 = 1063786^2 + 417104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163202050073 + ... + 163202050080.

It is an arithmetic number, because the mean of its divisors is an integer number (380804783513).

Almost surely, 2^{1305616400612} is an apocalyptic number.

It is an amenable number.

1305616400612 is a deficient number, since it is larger than the sum of its proper divisors (979212300466).

1305616400612 is a wasteful number, since it uses less digits than its factorization.

1305616400612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326404100157 (or 326404100155 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1305616400612 in words is "one trillion, three hundred five billion, six hundred sixteen million, four hundred thousand, six hundred twelve".