261430545211706 has 16 divisors (see below), whose sum is σ = 435933812364288. Its totient is φ = 116767985454000.

The previous prime is 261430545211631. The next prime is 261430545211733. The reversal of 261430545211706 is 607112545034162.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162177756770 + ... + 162177758381.

It is an arithmetic number, because the mean of its divisors is an integer number (27245863272768).

Almost surely, 2^{261430545211706} is an apocalyptic number.

261430545211706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

261430545211706 is a deficient number, since it is larger than the sum of its proper divisors (174503267152582).

261430545211706 is a wasteful number, since it uses less digits than its factorization.

261430545211706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324355515197.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 261430545211706 in words is "two hundred sixty-one trillion, four hundred thirty billion, five hundred forty-five million, two hundred eleven thousand, seven hundred six".