64041156 has 18 divisors (see below), whose sum is σ = 161881902. Its totient is φ = 21347040.

The previous prime is 64041149. The next prime is 64041163. The reversal of 64041156 is 65114046.

64041156 is a `hidden beast` number, since 640 + 4 + 1 + 15 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (64041149) and next prime (64041163).

It can be written as a sum of positive squares in only one way, i.e., 53582400 + 10458756 = 7320^2 + 3234^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889425 + ... + 889496.

It is an arithmetic number, because the mean of its divisors is an integer number (8993439).

Almost surely, 2^64041156 is an apocalyptic number.

It is an amenable number.

64041156 is an abundant number, since it is smaller than the sum of its proper divisors (97840746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64041156 is a wasteful number, since it uses less digits than its factorization.

64041156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778931 (or 1778926 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 64041156 is about 8002.5718366035. The cubic root of 64041156 is about 400.0857232941.

The spelling of 64041156 in words is "sixty-four million, forty-one thousand, one hundred fifty-six".