1613441936501 has 4 divisors (see below), whose sum is σ = 1613474259852. Its totient is φ = 1613409613152.

The previous prime is 1613441936497. The next prime is 1613441936503. The reversal of 1613441936501 is 1056391443161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 830303664100 + 783138272401 = 911210^2 + 884951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613441936501 - 2² = 1613441936497 is a prime.

It is a super-2 number, since 2×1613441936501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613441936503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16086686 + ... + 16186671.

It is an arithmetic number, because the mean of its divisors is an integer number (403368564963).

Almost surely, 2^{1613441936501} is an apocalyptic number.

It is an amenable number.

1613441936501 is a deficient number, since it is larger than the sum of its proper divisors (32323351).

1613441936501 is an equidigital number, since it uses as much as digits as its factorization.

1613441936501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32323350.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1613441936501 in words is "one trillion, six hundred thirteen billion, four hundred forty-one million, nine hundred thirty-six thousand, five hundred one".