632117145720 has 128 divisors (see below), whose sum is σ = 1915717386240. Its totient is φ = 166849320960.

The previous prime is 632117145707. The next prime is 632117145757. The reversal of 632117145720 is 27541711236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6551025 + ... + 6646815.

It is an arithmetic number, because the mean of its divisors is an integer number (14966542080).

Almost surely, 2^632117145720 is an apocalyptic number.

632117145720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632117145720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957858693120).

632117145720 is an abundant number, since it is smaller than the sum of its proper divisors (1283600240520).

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

632117145720 is a wasteful number, since it uses less digits than its factorization.

632117145720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96365 (or 96361 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

Adding to 632117145720 its reverse (27541711236), we get a palindrome (659658856956).

The spelling of 632117145720 in words is "six hundred thirty-two billion, one hundred seventeen million, one hundred forty-five thousand, seven hundred twenty".