634161676616 has 64 divisors (see below), whose sum is σ = 1284546943680. Its totient is φ = 291770760960.

The previous prime is 634161676583. The next prime is 634161676627. The reversal of 634161676616 is 616676161436.

It is a happy number.

It is a super-2 number, since 2×634161676616² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44946635 + ... + 44960741.

It is an arithmetic number, because the mean of its divisors is an integer number (20071045995).

Almost surely, 2^634161676616 is an apocalyptic number.

It is an amenable number.

634161676616 is an abundant number, since it is smaller than the sum of its proper divisors (650385267064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634161676616 is a wasteful number, since it uses less digits than its factorization.

634161676616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454 (or 15450 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The spelling of 634161676616 in words is "six hundred thirty-four billion, one hundred sixty-one million, six hundred seventy-six thousand, six hundred sixteen".