260402543020 has 12 divisors (see below), whose sum is σ = 546845340384. Its totient is φ = 104161017200.

The previous prime is 260402542969. The next prime is 260402543039. The reversal of 260402543020 is 20345204062.

It is a super-2 number, since 2×260402543020² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260402543020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6510063556 + ... + 6510063595.

It is an arithmetic number, because the mean of its divisors is an integer number (45570445032).

Almost surely, 2^260402543020 is an apocalyptic number.

260402543020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260402543020 is an abundant number, since it is smaller than the sum of its proper divisors (286442797364).

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

260402543020 is a wasteful number, since it uses less digits than its factorization.

260402543020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020127160 (or 13020127158 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 260402543020 its reverse (20345204062), we get a palindrome (280747747082).

The spelling of 260402543020 in words is "two hundred sixty billion, four hundred two million, five hundred forty-three thousand, twenty".