260077106725661 has 4 divisors (see below), whose sum is σ = 260078768854752. Its totient is φ = 260075444596572.

The previous prime is 260077106725649. The next prime is 260077106725763. The reversal of 260077106725661 is 166527601770062.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260077106725661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260077106725597 and 260077106725606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260077106025661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830829815 + ... + 831142788.

It is an arithmetic number, because the mean of its divisors is an integer number (65019692213688).

Almost surely, 2^{260077106725661} is an apocalyptic number.

It is an amenable number.

260077106725661 is a deficient number, since it is larger than the sum of its proper divisors (1662129091).

260077106725661 is a wasteful number, since it uses less digits than its factorization.

260077106725661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662129090.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 260077106725661 in words is "two hundred sixty trillion, seventy-seven billion, one hundred six million, seven hundred twenty-five thousand, six hundred sixty-one".