655363961 has 8 divisors (see below), whose sum is σ = 749331840. Its totient is φ = 561482208.

The previous prime is 655363937. The next prime is 655363981. The reversal of 655363961 is 169363556.

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

It is not a de Polignac number, because 655363961 - 2⁶ = 655363897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655363981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301 + ... + 36458.

It is an arithmetic number, because the mean of its divisors is an integer number (93666480).

Almost surely, 2^655363961 is an apocalyptic number.

It is an amenable number.

655363961 is a deficient number, since it is larger than the sum of its proper divisors (93967879).

655363961 is a wasteful number, since it uses less digits than its factorization.

655363961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43063.

The product of its digits is 437400, while the sum is 44.

The square root of 655363961 is about 25600.0773631644. The cubic root of 655363961 is about 868.6153872756.

The spelling of 655363961 in words is "six hundred fifty-five million, three hundred sixty-three thousand, nine hundred sixty-one".