1316770425621 has 48 divisors (see below), whose sum is σ = 2269432108800. Its totient is φ = 752384578176.

The previous prime is 1316770425611. The next prime is 1316770425629. The reversal of 1316770425621 is 1265240776131.

1316770425621 is a `hidden beast` number, since 1 + 3 + 16 + 7 + 7 + 0 + 4 + 2 + 5 + 621 = 666.

It is not a de Polignac number, because 1316770425621 - 2¹⁰ = 1316770424597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316770425629) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23573101 + ... + 23628893.

It is an arithmetic number, because the mean of its divisors is an integer number (47279835600).

Almost surely, 2^{1316770425621} is an apocalyptic number.

It is an amenable number.

1316770425621 is a deficient number, since it is larger than the sum of its proper divisors (952661683179).

1316770425621 is a wasteful number, since it uses less digits than its factorization.

1316770425621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73655 (or 73642 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 1316770425621 in words is "one trillion, three hundred sixteen billion, seven hundred seventy million, four hundred twenty-five thousand, six hundred twenty-one".