655263258406 has 4 divisors (see below), whose sum is σ = 982894887612. Its totient is φ = 327631629202.

The previous prime is 655263258389. The next prime is 655263258409. The reversal of 655263258406 is 604852362556.

It is a happy number.

655263258406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655263258409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163815814600 + ... + 163815814603.

It is an arithmetic number, because the mean of its divisors is an integer number (245723721903).

Almost surely, 2^655263258406 is an apocalyptic number.

655263258406 is a deficient number, since it is larger than the sum of its proper divisors (327631629206).

655263258406 is a wasteful number, since it uses less digits than its factorization.

655263258406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327631629205.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 655263258406 in words is "six hundred fifty-five billion, two hundred sixty-three million, two hundred fifty-eight thousand, four hundred six".