64904151312 has 320 divisors, whose sum is σ = 250137323520. Its totient is φ = 15561331200.

The previous prime is 64904151311. The next prime is 64904151317. The reversal of 64904151312 is 21315140946.

It is a happy number.

64904151312 is a `hidden beast` number, since 6 + 4 + 90 + 41 + 513 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64904151311) 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, 357387 + ... + 507477.

It is an arithmetic number, because the mean of its divisors is an integer number (781679136).

Almost surely, 2^64904151312 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 64904151312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125068661760).

64904151312 is an abundant number, since it is smaller than the sum of its proper divisors (185233172208).

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

64904151312 is a wasteful number, since it uses less digits than its factorization.

64904151312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150139 (or 150127 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 64904151312 in words is "sixty-four billion, nine hundred four million, one hundred fifty-one thousand, three hundred twelve".