261060663020 has 24 divisors (see below), whose sum is σ = 548848298544. Its totient is φ = 104305997376.

The previous prime is 261060662999. The next prime is 261060663029. The reversal of 261060663020 is 20366060162.

It is not an unprimeable number, because it can be changed into a prime (261060663029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7373639 + ... + 7408958.

It is an arithmetic number, because the mean of its divisors is an integer number (22868679106).

Almost surely, 2^261060663020 is an apocalyptic number.

261060663020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261060663020 is an abundant number, since it is smaller than the sum of its proper divisors (287787635524).

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

261060663020 is a wasteful number, since it uses less digits than its factorization.

261060663020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14783489 (or 14783487 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 261060663020 in words is "two hundred sixty-one billion, sixty million, six hundred sixty-three thousand, twenty".