655143022065 has 64 divisors (see below), whose sum is σ = 1201185423360. Its totient is φ = 298692334080.

The previous prime is 655143022043. The next prime is 655143022111. The reversal of 655143022065 is 560220341556.

It is not a de Polignac number, because 655143022065 - 2¹⁷ = 655142890993 is a prime.

It is a super-2 number, since 2×655143022065² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126791112 + ... + 126796278.

It is an arithmetic number, because the mean of its divisors is an integer number (18768522240).

Almost surely, 2^655143022065 is an apocalyptic number.

It is an amenable number.

655143022065 is a deficient number, since it is larger than the sum of its proper divisors (546042401295).

655143022065 is a wasteful number, since it uses less digits than its factorization.

655143022065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 655143022065 in words is "six hundred fifty-five billion, one hundred forty-three million, twenty-two thousand, sixty-five".