612246643555622 has 4 divisors (see below), whose sum is σ = 918369965333436. Its totient is φ = 306123321777810.

The previous prime is 612246643555597. The next prime is 612246643555639. The reversal of 612246643555622 is 226555346642216.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153061660888904 + ... + 153061660888907.

It is an arithmetic number, because the mean of its divisors is an integer number (229592491333359).

Almost surely, 2^{612246643555622} is an apocalyptic number.

612246643555622 is a deficient number, since it is larger than the sum of its proper divisors (306123321777814).

612246643555622 is a wasteful number, since it uses less digits than its factorization.

612246643555622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306123321777813.

The product of its digits is 124416000, while the sum is 59.

The spelling of 612246643555622 in words is "six hundred twelve trillion, two hundred forty-six billion, six hundred forty-three million, five hundred fifty-five thousand, six hundred twenty-two".