65419564642 has 8 divisors (see below), whose sum is σ = 98264327616. Its totient is φ = 32664788772.

The previous prime is 65419564607. The next prime is 65419564663. The reversal of 65419564642 is 24646591456.

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

It is a self number, because there is not a number n which added to its sum of digits gives 65419564642.

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, 22494958 + ... + 22497865.

It is an arithmetic number, because the mean of its divisors is an integer number (12283040952).

Almost surely, 2^65419564642 is an apocalyptic number.

65419564642 is a deficient number, since it is larger than the sum of its proper divisors (32844762974).

65419564642 is a wasteful number, since it uses less digits than its factorization.

65419564642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44993552.

The product of its digits is 6220800, while the sum is 52.

The spelling of 65419564642 in words is "sixty-five billion, four hundred nineteen million, five hundred sixty-four thousand, six hundred forty-two".