261457330702220 has 12 divisors (see below), whose sum is σ = 549060394474704. Its totient is φ = 104582932280880.

The previous prime is 261457330702153. The next prime is 261457330702261. The reversal of 261457330702220 is 22207033754162.

261457330702220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6536433267536 + ... + 6536433267575.

It is an arithmetic number, because the mean of its divisors is an integer number (45755032872892).

Almost surely, 2^{261457330702220} is an apocalyptic number.

261457330702220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261457330702220 is an abundant number, since it is smaller than the sum of its proper divisors (287603063772484).

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

261457330702220 is a wasteful number, since it uses less digits than its factorization.

261457330702220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072866535120 (or 13072866535118 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 261457330702220 in words is "two hundred sixty-one trillion, four hundred fifty-seven billion, three hundred thirty million, seven hundred two thousand, two hundred twenty".