64113855 has 16 divisors (see below), whose sum is σ = 110473440. Its totient is φ = 31563648.

The previous prime is 64113839. The next prime is 64113869. The reversal of 64113855 is 55831146.

It is not a de Polignac number, because 64113855 - 2⁴ = 64113839 is a prime.

It is a super-2 number, since 2×64113855² = 8221172805922050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164200 + ... + 164589.

It is an arithmetic number, because the mean of its divisors is an integer number (6904590).

Almost surely, 2^64113855 is an apocalyptic number.

64113855 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64113855 is a deficient number, since it is larger than the sum of its proper divisors (46359585).

64113855 is a wasteful number, since it uses less digits than its factorization.

64113855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328810.

The product of its digits is 14400, while the sum is 33.

The square root of 64113855 is about 8007.1127755265. The cubic root of 64113855 is about 400.2370573984.

The spelling of 64113855 in words is "sixty-four million, one hundred thirteen thousand, eight hundred fifty-five".