65620262612 has 6 divisors (see below), whose sum is σ = 114835459578. Its totient is φ = 32810131304.

The previous prime is 65620262593. The next prime is 65620262623. The reversal of 65620262612 is 21626202656.

It can be written as a sum of positive squares in only one way, i.e., 63320676496 + 2299586116 = 251636^2 + 47954^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8202532823 + ... + 8202532830.

It is an arithmetic number, because the mean of its divisors is an integer number (19139243263).

Almost surely, 2^65620262612 is an apocalyptic number.

It is an amenable number.

65620262612 is a deficient number, since it is larger than the sum of its proper divisors (49215196966).

65620262612 is a wasteful number, since it uses less digits than its factorization.

65620262612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16405065657 (or 16405065655 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 65620262612 in words is "sixty-five billion, six hundred twenty million, two hundred sixty-two thousand, six hundred twelve".