235451120640 has 1056 divisors, whose sum is σ = 868740249600. Its totient is φ = 54279536640.

The previous prime is 235451120621. The next prime is 235451120647. The reversal of 235451120640 is 46021154532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235451120647) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3990696931 + ... + 3990696989.

Almost surely, 2^235451120640 is an apocalyptic number.

235451120640 is a gapful number since it is divisible by the number (20) 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 235451120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434370124800).

235451120640 is an abundant number, since it is smaller than the sum of its proper divisors (633289128960).

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

235451120640 is a wasteful number, since it uses less digits than its factorization.

235451120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 235451120640 in words is "two hundred thirty-five billion, four hundred fifty-one million, one hundred twenty thousand, six hundred forty".