916061645 has 8 divisors (see below), whose sum is σ = 1099448856. Its totient is φ = 732732736.

The previous prime is 916061567. The next prime is 916061669. The reversal of 916061645 is 546160619.

It can be written as a sum of positive squares in 4 ways, for example, as 2390116 + 913671529 = 1546^2 + 30227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 916061645 - 2⁸ = 916061389 is a prime.

It is a super-3 number, since 3×916061645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 916061599 and 916061608.

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, 35879 + ... + 55851.

It is an arithmetic number, because the mean of its divisors is an integer number (137431107).

Almost surely, 2^916061645 is an apocalyptic number.

It is an amenable number.

916061645 is a deficient number, since it is larger than the sum of its proper divisors (183387211).

916061645 is a wasteful number, since it uses less digits than its factorization.

916061645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29151.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 916061645 is about 30266.5102877752. The cubic root of 916061645 is about 971.1990150396.

The spelling of 916061645 in words is "nine hundred sixteen million, sixty-one thousand, six hundred forty-five".