1613312227516 has 48 divisors (see below), whose sum is σ = 3288612273408. Its totient is φ = 685127520000.

The previous prime is 1613312227477. The next prime is 1613312227519. The reversal of 1613312227516 is 6157222133161.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613312227519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18493485 + ... + 18580516.

It is an arithmetic number, because the mean of its divisors is an integer number (68512755696).

Almost surely, 2^{1613312227516} is an apocalyptic number.

It is an amenable number.

1613312227516 is an abundant number, since it is smaller than the sum of its proper divisors (1675300045892).

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

1613312227516 is a wasteful number, since it uses less digits than its factorization.

1613312227516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37074082 (or 37074080 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The spelling of 1613312227516 in words is "one trillion, six hundred thirteen billion, three hundred twelve million, two hundred twenty-seven thousand, five hundred sixteen".