260012661651 has 24 divisors (see below), whose sum is σ = 395640960000. Its totient is φ = 164093878512.

The previous prime is 260012661631. The next prime is 260012661691. The reversal of 260012661651 is 156166210062.

260012661651 is a `hidden beast` number, since 26 + 0 + 0 + 12 + 6 + 616 + 5 + 1 = 666.

It is not a de Polignac number, because 260012661651 - 2¹¹ = 260012659603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260012661631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350851 + ... + 801948.

It is an arithmetic number, because the mean of its divisors is an integer number (16485040000).

Almost surely, 2^260012661651 is an apocalyptic number.

260012661651 is a deficient number, since it is larger than the sum of its proper divisors (135628298349).

260012661651 is a wasteful number, since it uses less digits than its factorization.

260012661651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154143 (or 1154140 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 260012661651 in words is "two hundred sixty billion, twelve million, six hundred sixty-one thousand, six hundred fifty-one".