264535174140 has 96 divisors (see below), whose sum is σ = 748896321600. Its totient is φ = 69763584000.

The previous prime is 264535174093. The next prime is 264535174147. The reversal of 264535174140 is 41471535462.

It is a junction number, because it is equal to n+sod(n) for n = 264535174092 and 264535174101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264535174147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5314086 + ... + 5363634.

It is an arithmetic number, because the mean of its divisors is an integer number (7801003350).

Almost surely, 2^264535174140 is an apocalyptic number.

264535174140 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 264535174140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374448160800).

264535174140 is an abundant number, since it is smaller than the sum of its proper divisors (484361147460).

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

264535174140 is a wasteful number, since it uses less digits than its factorization.

264535174140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50543 (or 50541 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 264535174140 in words is "two hundred sixty-four billion, five hundred thirty-five million, one hundred seventy-four thousand, one hundred forty".