15000078000064 has 56 divisors (see below), whose sum is σ = 30043005466320. Its totient is φ = 7430205855744.

The previous prime is 15000078000031. The next prime is 15000078000079. The reversal of 15000078000064 is 46000087000051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51707967 + ... + 51997249.

It is an arithmetic number, because the mean of its divisors is an integer number (536482240470).

Almost surely, 2^{15000078000064} 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 15000078000064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15021502733160).

15000078000064 is an abundant number, since it is smaller than the sum of its proper divisors (15042927466256).

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

15000078000064 is a wasteful number, since it uses less digits than its factorization.

15000078000064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296837 (or 296827 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 15000078000064 in words is "fifteen trillion, seventy-eight million, sixty-four", and thus it is an aban number.