64945499150 has 36 divisors (see below), whose sum is σ = 140520858768. Its totient is φ = 22267027440.

The previous prime is 64945499149. The next prime is 64945499153. The reversal of 64945499150 is 5199454946.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64945499153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13251734 + ... + 13256633.

It is an arithmetic number, because the mean of its divisors is an integer number (3903357188).

Almost surely, 2^64945499150 is an apocalyptic number.

64945499150 is an abundant number, since it is smaller than the sum of its proper divisors (75575359618).

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

64945499150 is a wasteful number, since it uses less digits than its factorization.

64945499150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508393 (or 26508381 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 64945499150 in words is "sixty-four billion, nine hundred forty-five million, four hundred ninety-nine thousand, one hundred fifty".