65611223352 has 24 divisors (see below), whose sum is σ = 177697063440. Its totient is φ = 21870407760.

The previous prime is 65611223311. The next prime is 65611223371. The reversal of 65611223352 is 25332211656.

65611223352 is a `hidden beast` number, since 6 + 5 + 611 + 2 + 2 + 3 + 35 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455633424 + ... + 455633567.

It is an arithmetic number, because the mean of its divisors is an integer number (7404044310).

Almost surely, 2^65611223352 is an apocalyptic number.

It is an amenable number.

65611223352 is an abundant number, since it is smaller than the sum of its proper divisors (112085840088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65611223352 is a wasteful number, since it uses less digits than its factorization.

65611223352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911267003 (or 911266996 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 65611223352 in words is "sixty-five billion, six hundred eleven million, two hundred twenty-three thousand, three hundred fifty-two".