655604807020670 has 64 divisors (see below), whose sum is σ = 1279029240961920. Its totient is φ = 240514485539328.

The previous prime is 655604807020643. The next prime is 655604807020699. The reversal of 655604807020670 is 76020708406556.

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 31 ways as a sum of consecutive naturals, for example, 376778216 + ... + 378514244.

It is an arithmetic number, because the mean of its divisors is an integer number (19984831890030).

Almost surely, 2^{655604807020670} is an apocalyptic number.

655604807020670 is a deficient number, since it is larger than the sum of its proper divisors (623424433941250).

655604807020670 is a wasteful number, since it uses less digits than its factorization.

655604807020670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754709.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 655604807020670 in words is "six hundred fifty-five trillion, six hundred four billion, eight hundred seven million, twenty thousand, six hundred seventy".