147634668657646 has 16 divisors (see below), whose sum is σ = 222035655394800. Its totient is φ = 73622808085888.

The previous prime is 147634668657607. The next prime is 147634668657661. The reversal of 147634668657646 is 646756866436741.

It is a super-2 number, since 2×147634668657646² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5905965 + ... + 18170023.

It is an arithmetic number, because the mean of its divisors is an integer number (13877228462175).

Almost surely, 2^{147634668657646} is an apocalyptic number.

147634668657646 is a deficient number, since it is larger than the sum of its proper divisors (74400986737154).

147634668657646 is a wasteful number, since it uses less digits than its factorization.

147634668657646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279923.

The product of its digits is 17557585920, while the sum is 79.

The spelling of 147634668657646 in words is "one hundred forty-seven trillion, six hundred thirty-four billion, six hundred sixty-eight million, six hundred fifty-seven thousand, six hundred forty-six".