261653023062322 has 8 divisors (see below), whose sum is σ = 409543862184576. Its totient is φ = 125138402334132.

The previous prime is 261653023062281. The next prime is 261653023062349. The reversal of 261653023062322 is 223260320356162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844054598458 + ... + 2844054598549.

It is an arithmetic number, because the mean of its divisors is an integer number (51192982773072).

Almost surely, 2^{261653023062322} is an apocalyptic number.

261653023062322 is a deficient number, since it is larger than the sum of its proper divisors (147890839122254).

261653023062322 is a wasteful number, since it uses less digits than its factorization.

261653023062322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688109197032.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 261653023062322 in words is "two hundred sixty-one trillion, six hundred fifty-three billion, twenty-three million, sixty-two thousand, three hundred twenty-two".