64099391202 has 128 divisors (see below), whose sum is σ = 179423354880. Its totient is φ = 16477447680.

The previous prime is 64099391201. The next prime is 64099391203. The reversal of 64099391202 is 20219399046.

It is a happy number.

64099391202 is a `hidden beast` number, since 6 + 409 + 9 + 39 + 1 + 202 = 666.

It is an interprime number because it is at equal distance from previous prime (64099391201) and next prime (64099391203).

It is not an unprimeable number, because it can be changed into a prime (64099391201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323863 + ... + 482789.

It is an arithmetic number, because the mean of its divisors is an integer number (1401744960).

Almost surely, 2^64099391202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64099391202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89711677440).

64099391202 is an abundant number, since it is smaller than the sum of its proper divisors (115323963678).

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

64099391202 is a wasteful number, since it uses less digits than its factorization.

64099391202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159053 (or 159047 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 64099391202 in words is "sixty-four billion, ninety-nine million, three hundred ninety-one thousand, two hundred two".