655630196898 has 64 divisors (see below), whose sum is σ = 1329195958272. Its totient is φ = 215581322880.

The previous prime is 655630196807. The next prime is 655630196899. The reversal of 655630196898 is 898691036556.

It is not an unprimeable number, because it can be changed into a prime (655630196899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65775111 + ... + 65785077.

It is an arithmetic number, because the mean of its divisors is an integer number (20768686848).

Almost surely, 2^655630196898 is an apocalyptic number.

655630196898 is an abundant number, since it is smaller than the sum of its proper divisors (673565761374).

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

655630196898 is a wasteful number, since it uses less digits than its factorization.

655630196898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639.

The product of its (nonzero) digits is 83980800, while the sum is 66.

The spelling of 655630196898 in words is "six hundred fifty-five billion, six hundred thirty million, one hundred ninety-six thousand, eight hundred ninety-eight".