261647532045200 has 120 divisors (see below), whose sum is σ = 741583862499840. Its totient is φ = 86813927654400.

The previous prime is 261647532045167. The next prime is 261647532045233. The reversal of 261647532045200 is 2540235746162.

261647532045200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (261647532045167) and next prime (261647532045233).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1507099445 + ... + 1507273044.

It is an arithmetic number, because the mean of its divisors is an integer number (6179865520832).

Almost surely, 2^{261647532045200} is an apocalyptic number.

261647532045200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261647532045200 is an abundant number, since it is smaller than the sum of its proper divisors (479936330454640).

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

261647532045200 is a wasteful number, since it uses less digits than its factorization.

261647532045200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014372545 (or 3014372534 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 261647532045200 in words is "two hundred sixty-one trillion, six hundred forty-seven billion, five hundred thirty-two million, forty-five thousand, two hundred".