260365613640 has 128 divisors (see below), whose sum is σ = 852235413120. Its totient is φ = 63109324800.

The previous prime is 260365613623. The next prime is 260365613693. The reversal of 260365613640 is 46316563062.

It is a happy number.

It is a super-2 number, since 2×260365613640² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 260365613592 and 260365613601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12789870 + ... + 12810210.

It is an arithmetic number, because the mean of its divisors is an integer number (6658089165).

Almost surely, 2^260365613640 is an apocalyptic number.

260365613640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260365613640 is an abundant number, since it is smaller than the sum of its proper divisors (591869799480).

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

260365613640 is a wasteful number, since it uses less digits than its factorization.

260365613640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30063 (or 30059 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 260365613640 in words is "two hundred sixty billion, three hundred sixty-five million, six hundred thirteen thousand, six hundred forty".