64155063 has 16 divisors (see below), whose sum is σ = 99756800. Its totient is φ = 36659448.

The previous prime is 64155061. The next prime is 64155083. The reversal of 64155063 is 36055146.

It is not a de Polignac number, because 64155063 - 2¹ = 64155061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64155063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64155061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30145 + ... + 32202.

It is an arithmetic number, because the mean of its divisors is an integer number (6234800).

Almost surely, 2^64155063 is an apocalyptic number.

64155063 is a deficient number, since it is larger than the sum of its proper divisors (35601737).

64155063 is an equidigital number, since it uses as much as digits as its factorization.

64155063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62371 (or 62357 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 64155063 is about 8009.6855743531. The cubic root of 64155063 is about 400.3227873674.

The spelling of 64155063 in words is "sixty-four million, one hundred fifty-five thousand, sixty-three".