261234660051562 has 8 divisors (see below), whose sum is σ = 408889033124256. Its totient is φ = 124938315676812.

The previous prime is 261234660051559. The next prime is 261234660051577. The reversal of 261234660051562 is 265150066432162.

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

It is a super-2 number, since 2×261234660051562² (a number of 30 digits) contains 22 as substring.

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, 2839507174428 + ... + 2839507174519.

It is an arithmetic number, because the mean of its divisors is an integer number (51111129140532).

Almost surely, 2^{261234660051562} is an apocalyptic number.

261234660051562 is a deficient number, since it is larger than the sum of its proper divisors (147654373072694).

261234660051562 is a wasteful number, since it uses less digits than its factorization.

261234660051562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679014348972.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 261234660051562 in words is "two hundred sixty-one trillion, two hundred thirty-four billion, six hundred sixty million, fifty-one thousand, five hundred sixty-two".