68801565 has 32 divisors (see below), whose sum is σ = 132433920. Its totient is φ = 29795904.

The previous prime is 68801531. The next prime is 68801569. The reversal of 68801565 is 56510886.

It is not a de Polignac number, because 68801565 - 2¹⁷ = 68670493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68801569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15249 + ... + 19238.

It is an arithmetic number, because the mean of its divisors is an integer number (4138560).

Almost surely, 2^68801565 is an apocalyptic number.

It is an amenable number.

68801565 is a deficient number, since it is larger than the sum of its proper divisors (63632355).

68801565 is a wasteful number, since it uses less digits than its factorization.

68801565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34521.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 68801565 is about 8294.6708795467. The cubic root of 68801565 is about 409.7630298291.

The spelling of 68801565 in words is "sixty-eight million, eight hundred one thousand, five hundred sixty-five".