655351760040 has 64 divisors (see below), whose sum is σ = 1979250336000. Its totient is φ = 173587575552.

The previous prime is 655351759939. The next prime is 655351760053. The reversal of 655351760040 is 40067153556.

It is a junction number, because it is equal to n+sod(n) for n = 655351759974 and 655351760001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18308512 + ... + 18344271.

It is an arithmetic number, because the mean of its divisors is an integer number (30925786500).

Almost surely, 2^655351760040 is an apocalyptic number.

655351760040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655351760040 is an abundant number, since it is smaller than the sum of its proper divisors (1323898575960).

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

655351760040 is a wasteful number, since it uses less digits than its factorization.

655351760040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36652946 (or 36652942 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 655351760040 in words is "six hundred fifty-five billion, three hundred fifty-one million, seven hundred sixty thousand, forty".