64150656 has 128 divisors (see below), whose sum is σ = 186831360. Its totient is φ = 19415040.

The previous prime is 64150651. The next prime is 64150663. The reversal of 64150656 is 65605146.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (64150651) 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, 202210 + ... + 202526.

It is an arithmetic number, because the mean of its divisors is an integer number (1459620).

Almost surely, 2^64150656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64150656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93415680).

64150656 is an abundant number, since it is smaller than the sum of its proper divisors (122680704).

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

64150656 is a wasteful number, since it uses less digits than its factorization.

64150656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 64150656 is about 8009.4104651965. The cubic root of 64150656 is about 400.3136207075.

The spelling of 64150656 in words is "sixty-four million, one hundred fifty thousand, six hundred fifty-six".