64662590541 has 8 divisors (see below), whose sum is σ = 90754513120. Its totient is φ = 40839530832.

The previous prime is 64662590533. The next prime is 64662590581. The reversal of 64662590541 is 14509526646.

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

It is not a de Polignac number, because 64662590541 - 2³ = 64662590533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64662590501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567215650 + ... + 567215763.

It is an arithmetic number, because the mean of its divisors is an integer number (11344314140).

Almost surely, 2^64662590541 is an apocalyptic number.

It is an amenable number.

64662590541 is a deficient number, since it is larger than the sum of its proper divisors (26091922579).

64662590541 is a wasteful number, since it uses less digits than its factorization.

64662590541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134431435.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 64662590541 in words is "sixty-four billion, six hundred sixty-two million, five hundred ninety thousand, five hundred forty-one".