645416541013 has 8 divisors (see below), whose sum is σ = 667115739360. Its totient is φ = 624076007280.

The previous prime is 645416541001. The next prime is 645416541019. The reversal of 645416541013 is 310145614546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645416541013 - 2¹³ = 645416532821 is a prime.

It is a super-2 number, since 2×645416541013² (a number of 24 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 (645416541019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89662495 + ... + 89669692.

It is an arithmetic number, because the mean of its divisors is an integer number (83389467420).

Almost surely, 2^645416541013 is an apocalyptic number.

It is an amenable number.

645416541013 is a deficient number, since it is larger than the sum of its proper divisors (21699198347).

645416541013 is a wasteful number, since it uses less digits than its factorization.

645416541013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179332307.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 645416541013 in words is "six hundred forty-five billion, four hundred sixteen million, five hundred forty-one thousand, thirteen".