64106080642 has 8 divisors (see below), whose sum is σ = 96277985100. Its totient is φ = 32013418944.

The previous prime is 64106080639. The next prime is 64106080651. The reversal of 64106080642 is 24608060146.

It can be written as a sum of positive squares in 2 ways, for example, as 64105682481 + 398161 = 253191^2 + 631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19808667 + ... + 19811902.

Almost surely, 2^64106080642 is an apocalyptic number.

64106080642 is a deficient number, since it is larger than the sum of its proper divisors (32171904458).

64106080642 is a wasteful number, since it uses less digits than its factorization.

64106080642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39621380.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 64106080642 in words is "sixty-four billion, one hundred six million, eighty thousand, six hundred forty-two".