64250615116641 has 16 divisors (see below), whose sum is σ = 86163964233984. Its totient is φ = 42585775862784.

The previous prime is 64250615116637. The next prime is 64250615116711. The reversal of 64250615116641 is 14661151605246.

It is not a de Polignac number, because 64250615116641 - 2² = 64250615116637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64250615116621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32945961 + ... + 34841606.

It is an arithmetic number, because the mean of its divisors is an integer number (5385247764624).

Almost surely, 2^{64250615116641} is an apocalyptic number.

It is an amenable number.

64250615116641 is a deficient number, since it is larger than the sum of its proper divisors (21913349117343).

64250615116641 is a wasteful number, since it uses less digits than its factorization.

64250615116641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67789400.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 64250615116641 in words is "sixty-four trillion, two hundred fifty billion, six hundred fifteen million, one hundred sixteen thousand, six hundred forty-one".