64131620303 has 8 divisors (see below), whose sum is σ = 67538689920. Its totient is φ = 60727722840.

The previous prime is 64131620299. The next prime is 64131620317. The reversal of 64131620303 is 30302613146.

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 64131620303 - 2² = 64131620299 is a prime.

It is a super-2 number, since 2×64131620303² (a number of 22 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 (64131620803) 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, 751475 + ... + 832452.

It is an arithmetic number, because the mean of its divisors is an integer number (8442336240).

Almost surely, 2^64131620303 is an apocalyptic number.

64131620303 is a deficient number, since it is larger than the sum of its proper divisors (3407069617).

64131620303 is a wasteful number, since it uses less digits than its factorization.

64131620303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586077.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 64131620303 in words is "sixty-four billion, one hundred thirty-one million, six hundred twenty thousand, three hundred three".