65155001565 has 32 divisors (see below), whose sum is σ = 108892429056. Its totient is φ = 33204300800.

The previous prime is 65155001551. The next prime is 65155001581. The reversal of 65155001565 is 56510055156.

It is not a de Polignac number, because 65155001565 - 2⁶ = 65155001501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240415 + ... + 433715.

It is an arithmetic number, because the mean of its divisors is an integer number (3402888408).

Almost surely, 2^65155001565 is an apocalyptic number.

It is an amenable number.

65155001565 is a deficient number, since it is larger than the sum of its proper divisors (43737427491).

65155001565 is a wasteful number, since it uses less digits than its factorization.

65155001565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194309.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 65155001565 in words is "sixty-five billion, one hundred fifty-five million, one thousand, five hundred sixty-five".