261262336056151 has 8 divisors (see below), whose sum is σ = 261292279852800. Its totient is φ = 261232393111800.

The previous prime is 261262336056133. The next prime is 261262336056221. The reversal of 261262336056151 is 151650633262162.

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

It is a cyclic number.

It is not a de Polignac number, because 261262336056151 - 2¹³ = 261262336047959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261262336056095 and 261262336056104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261262336056101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 767230476 + ... + 767570926.

It is an arithmetic number, because the mean of its divisors is an integer number (32661534981600).

Almost surely, 2^{261262336056151} is an apocalyptic number.

261262336056151 is a deficient number, since it is larger than the sum of its proper divisors (29943796649).

261262336056151 is a wasteful number, since it uses less digits than its factorization.

261262336056151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426149.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 261262336056151 in words is "two hundred sixty-one trillion, two hundred sixty-two billion, three hundred thirty-six million, fifty-six thousand, one hundred fifty-one".