65267583381 has 128 divisors (see below), whose sum is σ = 130110382080. Its totient is φ = 31228416000.

The previous prime is 65267583379. The next prime is 65267583419. The reversal of 65267583381 is 18338576256.

65267583381 is a `hidden beast` number, since 6 + 5 + 26 + 7 + 583 + 38 + 1 = 666.

It is not a de Polignac number, because 65267583381 - 2¹ = 65267583379 is a prime.

It is a super-2 number, since 2×65267583381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65267583331) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13592181 + ... + 13596981.

It is an arithmetic number, because the mean of its divisors is an integer number (1016487360).

Almost surely, 2^65267583381 is an apocalyptic number.

It is an amenable number.

65267583381 is a deficient number, since it is larger than the sum of its proper divisors (64842798699).

65267583381 is a wasteful number, since it uses less digits than its factorization.

65267583381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344 (or 5338 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 65267583381 in words is "sixty-five billion, two hundred sixty-seven million, five hundred eighty-three thousand, three hundred eighty-one".