64145604533141 has 4 divisors (see below), whose sum is σ = 64145946173484. Its totient is φ = 64145262892800.

The previous prime is 64145604533123. The next prime is 64145604533159. The reversal of 64145604533141 is 14133540654146.

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

It is an interprime number because it is at equal distance from previous prime (64145604533123) and next prime (64145604533159).

It can be written as a sum of positive squares in 2 ways, for example, as 9033481080625 + 55112123452516 = 3005575^2 + 7423754^2 .

It is a cyclic number.

It is not a de Polignac number, because 64145604533141 - 2¹⁴ = 64145604516757 is a prime.

It is a super-2 number, since 2×64145604533141² (a number of 28 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 (64145604533111) 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, 170538380 + ... + 170914101.

It is an arithmetic number, because the mean of its divisors is an integer number (16036486543371).

Almost surely, 2^{64145604533141} is an apocalyptic number.

It is an amenable number.

64145604533141 is a deficient number, since it is larger than the sum of its proper divisors (341640343).

64145604533141 is a wasteful number, since it uses less digits than its factorization.

64145604533141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341640342.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 64145604533141 in words is "sixty-four trillion, one hundred forty-five billion, six hundred four million, five hundred thirty-three thousand, one hundred forty-one".