655022540065 has 8 divisors (see below), whose sum is σ = 787529971008. Its totient is φ = 523016083440.

The previous prime is 655022540057. The next prime is 655022540087. The reversal of 655022540065 is 560045220556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655022540065 - 2³ = 655022540057 is a prime.

It is a Duffinian 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, 125240701 + ... + 125245930.

It is an arithmetic number, because the mean of its divisors is an integer number (98441246376).

Almost surely, 2^655022540065 is an apocalyptic number.

It is an amenable number.

655022540065 is a deficient number, since it is larger than the sum of its proper divisors (132507430943).

655022540065 is a wasteful number, since it uses less digits than its factorization.

655022540065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250487159.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 655022540065 in words is "six hundred fifty-five billion, twenty-two million, five hundred forty thousand, sixty-five".