1316611637620 has 48 divisors (see below), whose sum is σ = 2792521630080. Its totient is φ = 521386769024.

The previous prime is 1316611637597. The next prime is 1316611637633. The reversal of 1316611637620 is 267361166131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3138942 + ... + 3533578.

It is an arithmetic number, because the mean of its divisors is an integer number (58177533960).

Almost surely, 2^{1316611637620} is an apocalyptic number.

1316611637620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316611637620 is an abundant number, since it is smaller than the sum of its proper divisors (1475909992460).

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

1316611637620 is a wasteful number, since it uses less digits than its factorization.

1316611637620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396312 (or 396310 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 1316611637620 in words is "one trillion, three hundred sixteen billion, six hundred eleven million, six hundred thirty-seven thousand, six hundred twenty".