655711681246 has 4 divisors (see below), whose sum is σ = 983567521872. Its totient is φ = 327855840622.

The previous prime is 655711681201. The next prime is 655711681271. The reversal of 655711681246 is 642186117556.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×655711681246² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655711681193 and 655711681202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163927920310 + ... + 163927920313.

It is an arithmetic number, because the mean of its divisors is an integer number (245891880468).

Almost surely, 2^655711681246 is an apocalyptic number.

655711681246 is a deficient number, since it is larger than the sum of its proper divisors (327855840626).

655711681246 is a wasteful number, since it uses less digits than its factorization.

655711681246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327855840625.

The product of its digits is 2419200, while the sum is 52.

The spelling of 655711681246 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, two hundred forty-six".