260644006420 has 48 divisors (see below), whose sum is σ = 625775754240. Its totient is φ = 89330782464.

The previous prime is 260644006391. The next prime is 260644006421. The reversal of 260644006420 is 24600446062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260644006421) 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, 40957 + ... + 723163.

It is an arithmetic number, because the mean of its divisors is an integer number (13036994880).

Almost surely, 2^260644006420 is an apocalyptic number.

260644006420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260644006420 is an abundant number, since it is smaller than the sum of its proper divisors (365131747820).

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

260644006420 is a wasteful number, since it uses less digits than its factorization.

260644006420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684952 (or 684950 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 260644006420 in words is "two hundred sixty billion, six hundred forty-four million, six thousand, four hundred twenty".