261533466031002 has 48 divisors (see below), whose sum is σ = 574994185224480. Its totient is φ = 79245280834720.

The previous prime is 261533466030929. The next prime is 261533466031081. The reversal of 261533466031002 is 200130664335162.

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, 8649477 + ... + 24451592.

It is an arithmetic number, because the mean of its divisors is an integer number (11979045525510).

Almost surely, 2^{261533466031002} is an apocalyptic number.

261533466031002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261533466031002 is an abundant number, since it is smaller than the sum of its proper divisors (313460719193478).

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

261533466031002 is a wasteful number, since it uses less digits than its factorization.

261533466031002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33111979 (or 33111968 counting only the distinct ones).

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

The spelling of 261533466031002 in words is "two hundred sixty-one trillion, five hundred thirty-three billion, four hundred sixty-six million, thirty-one thousand, two".