916538064 has 80 divisors (see below), whose sum is σ = 2632164864. Its totient is φ = 272908800.

The previous prime is 916538059. The next prime is 916538089. The reversal of 916538064 is 460835619.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4347 + ... + 43034.

Almost surely, 2^916538064 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 916538064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316082432).

916538064 is an abundant number, since it is smaller than the sum of its proper divisors (1715626800).

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

916538064 is a wasteful number, since it uses less digits than its factorization.

916538064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47436 (or 47430 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 916538064 is about 30274.3796633391. The cubic root of 916538064 is about 971.3673506813.

The spelling of 916538064 in words is "nine hundred sixteen million, five hundred thirty-eight thousand, sixty-four".