265672019340 has 1536 divisors, whose sum is σ = 1130043801600. Its totient is φ = 50254110720.

The previous prime is 265672019299. The next prime is 265672019369. The reversal of 265672019340 is 43910276562.

265672019340 is a `hidden beast` number, since 26 + 567 + 20 + 1 + 9 + 3 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 1939211752 + ... + 1939211888.

It is an arithmetic number, because the mean of its divisors is an integer number (735705600).

Almost surely, 2^265672019340 is an apocalyptic number.

265672019340 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 265672019340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565021900800).

265672019340 is an abundant number, since it is smaller than the sum of its proper divisors (864371782260).

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

265672019340 is a wasteful number, since it uses less digits than its factorization.

265672019340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 265672019340 in words is "two hundred sixty-five billion, six hundred seventy-two million, nineteen thousand, three hundred forty".