65156056646 has 16 divisors (see below), whose sum is σ = 101385885600. Its totient is φ = 31367020608.

The previous prime is 65156056639. The next prime is 65156056709. The reversal of 65156056646 is 64665065156.

65156056646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65156056594 and 65156056603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543775 + ... + 1585418.

It is an arithmetic number, because the mean of its divisors is an integer number (6336617850).

Almost surely, 2^65156056646 is an apocalyptic number.

65156056646 is a deficient number, since it is larger than the sum of its proper divisors (36229828954).

65156056646 is a wasteful number, since it uses less digits than its factorization.

65156056646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129583.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 65156056646 in words is "sixty-five billion, one hundred fifty-six million, fifty-six thousand, six hundred forty-six".