65610436772 has 6 divisors (see below), whose sum is σ = 114818264358. Its totient is φ = 32805218384.

The previous prime is 65610436753. The next prime is 65610436783. The reversal of 65610436772 is 27763401656.

It can be written as a sum of positive squares in only one way, i.e., 55948333156 + 9662103616 = 236534^2 + 98296^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8201304593 + ... + 8201304600.

It is an arithmetic number, because the mean of its divisors is an integer number (19136377393).

Almost surely, 2^65610436772 is an apocalyptic number.

It is an amenable number.

65610436772 is a deficient number, since it is larger than the sum of its proper divisors (49207827586).

65610436772 is a wasteful number, since it uses less digits than its factorization.

65610436772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16402609197 (or 16402609195 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 65610436772 in words is "sixty-five billion, six hundred ten million, four hundred thirty-six thousand, seven hundred seventy-two".