265461572420 has 48 divisors (see below), whose sum is σ = 622291336128. Its totient is φ = 94286559360.

The previous prime is 265461572419. The next prime is 265461572423. The reversal of 265461572420 is 24275164562.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (265461572423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14021279 + ... + 14040198.

It is an arithmetic number, because the mean of its divisors is an integer number (12964402836).

Almost surely, 2^265461572420 is an apocalyptic number.

265461572420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265461572420 is an abundant number, since it is smaller than the sum of its proper divisors (356829763708).

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

265461572420 is a wasteful number, since it uses less digits than its factorization.

265461572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061540 (or 28061538 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 265461572420 in words is "two hundred sixty-five billion, four hundred sixty-one million, five hundred seventy-two thousand, four hundred twenty".