261061352167 has 8 divisors (see below), whose sum is σ = 325479088512. Its totient is φ = 203424430200.

The previous prime is 261061352143. The next prime is 261061352203. The reversal of 261061352167 is 761253160162.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261061352167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261061352267) 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, 1695203509 + ... + 1695203662.

It is an arithmetic number, because the mean of its divisors is an integer number (40684886064).

Almost surely, 2^261061352167 is an apocalyptic number.

261061352167 is a deficient number, since it is larger than the sum of its proper divisors (64417736345).

261061352167 is a wasteful number, since it uses less digits than its factorization.

261061352167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390407189.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 261061352167 in words is "two hundred sixty-one billion, sixty-one million, three hundred fifty-two thousand, one hundred sixty-seven".