634261161622125 has 16 divisors (see below), whose sum is σ = 1055410572939840. Its totient is φ = 338272619531600.

The previous prime is 634261161622117. The next prime is 634261161622133. The reversal of 634261161622125 is 521226161162436.

It is an interprime number because it is at equal distance from previous prime (634261161622117) and next prime (634261161622133).

It is not a de Polignac number, because 634261161622125 - 2³ = 634261161622117 is a prime.

It is a super-2 number, since 2×634261161622125² (a number of 30 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 (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845681548455 + ... + 845681549204.

It is an arithmetic number, because the mean of its divisors is an integer number (65963160808740).

Almost surely, 2^{634261161622125} is an apocalyptic number.

It is an amenable number.

634261161622125 is a deficient number, since it is larger than the sum of its proper divisors (421149411317715).

634261161622125 is a wasteful number, since it uses less digits than its factorization.

634261161622125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691363097677 (or 1691363097667 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 634261161622125 in words is "six hundred thirty-four trillion, two hundred sixty-one billion, one hundred sixty-one million, six hundred twenty-two thousand, one hundred twenty-five".