64149696 has 126 divisors (see below), whose sum is σ = 199407780. Its totient is φ = 19708416.

The previous prime is 64149671. The next prime is 64149703. The reversal of 64149696 is 69694146.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 97015 + ... + 97673.

Almost surely, 2^64149696 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 64149696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99703890).

64149696 is an abundant number, since it is smaller than the sum of its proper divisors (135258084).

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

64149696 is a wasteful number, since it uses less digits than its factorization.

64149696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 677 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 64149696 is about 8009.3505354679. The cubic root of 64149696 is about 400.3116238301.

It can be divided in two parts, 6414 and 9696, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 64149696 in words is "sixty-four million, one hundred forty-nine thousand, six hundred ninety-six".