632142121664 has 56 divisors (see below), whose sum is σ = 1295617554048. Its totient is φ = 305699051520.

The previous prime is 632142121643. The next prime is 632142121673. The reversal of 632142121664 is 466121241236.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3387074 + ... + 3568830.

Almost surely, 2^632142121664 is an apocalyptic number.

632142121664 is a gapful number since it is divisible by the number (64) 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 632142121664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647808777024).

632142121664 is an abundant number, since it is smaller than the sum of its proper divisors (663475432384).

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

632142121664 is a wasteful number, since it uses less digits than its factorization.

632142121664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183553 (or 183543 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The spelling of 632142121664 in words is "six hundred thirty-two billion, one hundred forty-two million, one hundred twenty-one thousand, six hundred sixty-four".