641342142601 has 4 divisors (see below), whose sum is σ = 641356332804. Its totient is φ = 641327952400.

The previous prime is 641342142593. The next prime is 641342142643. The reversal of 641342142601 is 106241243146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106241243146 = 2 ⋅53120621573.

It can be written as a sum of positive squares in 2 ways, for example, as 87060403600 + 554281739001 = 295060^2 + 744501^2 .

It is a cyclic number.

It is not a de Polignac number, because 641342142601 - 2³ = 641342142593 is a prime.

It is a super-2 number, since 2×641342142601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641342142101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7027090 + ... + 7117771.

It is an arithmetic number, because the mean of its divisors is an integer number (160339083201).

Almost surely, 2^641342142601 is an apocalyptic number.

It is an amenable number.

641342142601 is a deficient number, since it is larger than the sum of its proper divisors (14190203).

641342142601 is a wasteful number, since it uses less digits than its factorization.

641342142601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190202.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 641342142601 its reverse (106241243146), we get a palindrome (747583385747).

The spelling of 641342142601 in words is "six hundred forty-one billion, three hundred forty-two million, one hundred forty-two thousand, six hundred one".