655616145 has 8 divisors (see below), whose sum is σ = 1048985856. Its totient is φ = 349661936.

The previous prime is 655616119. The next prime is 655616161. The reversal of 655616145 is 541616556.

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

It is a cyclic number.

It is not a de Polignac number, because 655616145 - 2⁸ = 655615889 is a prime.

It is a super-2 number, since 2×655616145² = 859665059169322050, which contains 22 as substring.

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, 21853857 + ... + 21853886.

It is an arithmetic number, because the mean of its divisors is an integer number (131123232).

Almost surely, 2^655616145 is an apocalyptic number.

It is an amenable number.

655616145 is a deficient number, since it is larger than the sum of its proper divisors (393369711).

655616145 is a wasteful number, since it uses less digits than its factorization.

655616145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43707751.

The product of its digits is 108000, while the sum is 39.

The square root of 655616145 is about 25605.0023432922. The cubic root of 655616145 is about 868.7267873652.

The spelling of 655616145 in words is "six hundred fifty-five million, six hundred sixteen thousand, one hundred forty-five".