1620036344336 has 10 divisors (see below), whose sum is σ = 3138820417182. Its totient is φ = 810018172160.

The previous prime is 1620036344123. The next prime is 1620036344431. The reversal of 1620036344336 is 6334436300261.

It can be written as a sum of positive squares in only one way, i.e., 1253459376400 + 366576967936 = 1119580^2 + 605456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1620036344293 and 1620036344302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50626135745 + ... + 50626135776.

Almost surely, 2^{1620036344336} is an apocalyptic number.

1620036344336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1620036344336 is a deficient number, since it is larger than the sum of its proper divisors (1518784072846).

1620036344336 is a wasteful number, since it uses less digits than its factorization.

1620036344336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101252271529 (or 101252271523 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 41.

The spelling of 1620036344336 in words is "one trillion, six hundred twenty billion, thirty-six million, three hundred forty-four thousand, three hundred thirty-six".