655540642004 has 24 divisors (see below), whose sum is σ = 1148188802880. Its totient is φ = 327486789504.

The previous prime is 655540641983. The next prime is 655540642021. The reversal of 655540642004 is 400246045556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52424417 + ... + 52436919.

It is an arithmetic number, because the mean of its divisors is an integer number (47841200120).

Almost surely, 2^655540642004 is an apocalyptic number.

It is an amenable number.

655540642004 is a deficient number, since it is larger than the sum of its proper divisors (492648160876).

655540642004 is a wasteful number, since it uses less digits than its factorization.

655540642004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22799 (or 22797 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 655540642004 in words is "six hundred fifty-five billion, five hundred forty million, six hundred forty-two thousand, four".