1641611436102 has 72 divisors (see below), whose sum is σ = 3912574930992. Its totient is φ = 497075372640.

The previous prime is 1641611436067. The next prime is 1641611436131. The reversal of 1641611436102 is 2016341161461.

1641611436102 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 611 + 4 + 36 + 1 + 0 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2548708 + ... + 3127160.

It is an arithmetic number, because the mean of its divisors is an integer number (54341318486).

Almost surely, 2^{1641611436102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641611436102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1956287465496).

1641611436102 is an abundant number, since it is smaller than the sum of its proper divisors (2270963494890).

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

1641611436102 is a wasteful number, since it uses less digits than its factorization.

1641611436102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579786 (or 579772 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 1641611436102 its reverse (2016341161461), we get a palindrome (3657952597563).

The spelling of 1641611436102 in words is "one trillion, six hundred forty-one billion, six hundred eleven million, four hundred thirty-six thousand, one hundred two".