655502211552 has 48 divisors (see below), whose sum is σ = 1720813610880. Its totient is φ = 218485460352.

The previous prime is 655502211541. The next prime is 655502211601. The reversal of 655502211552 is 255112205556.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 655502211552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185543 + ... + 1648185.

It is an arithmetic number, because the mean of its divisors is an integer number (35850283560).

Almost surely, 2^655502211552 is an apocalyptic number.

It is an amenable number.

655502211552 is an abundant number, since it is smaller than the sum of its proper divisors (1065311399328).

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

655502211552 is a wasteful number, since it uses less digits than its factorization.

655502211552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477415 (or 477407 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 655502211552 in words is "six hundred fifty-five billion, five hundred two million, two hundred eleven thousand, five hundred fifty-two".