655691946026 has 32 divisors (see below), whose sum is σ = 1083597540480. Its totient is φ = 295716240576.

The previous prime is 655691946023. The next prime is 655691946079. The reversal of 655691946026 is 620649196556.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is not an unprimeable number, because it can be changed into a prime (655691946023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023581 + ... + 1535936.

It is an arithmetic number, because the mean of its divisors is an integer number (33862423140).

Almost surely, 2^655691946026 is an apocalyptic number.

655691946026 is a deficient number, since it is larger than the sum of its proper divisors (427905594454).

655691946026 is a wasteful number, since it uses less digits than its factorization.

655691946026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559758.

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 655691946026 in words is "six hundred fifty-five billion, six hundred ninety-one million, nine hundred forty-six thousand, twenty-six".