616064331 has 16 divisors (see below), whose sum is σ = 825887744. Its totient is φ = 408482784.

The previous prime is 616064329. The next prime is 616064359. The reversal of 616064331 is 133460616.

It is not a de Polignac number, because 616064331 - 2¹ = 616064329 is a prime.

It is a super-2 number, since 2×616064331² = 759070519860955122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616064431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678780 + ... + 679686.

It is an arithmetic number, because the mean of its divisors is an integer number (51617984).

Almost surely, 2^616064331 is an apocalyptic number.

616064331 is a deficient number, since it is larger than the sum of its proper divisors (209823413).

616064331 is a wasteful number, since it uses less digits than its factorization.

616064331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 616064331 is about 24820.6432430749. The cubic root of 616064331 is about 850.8937915499.

The spelling of 616064331 in words is "six hundred sixteen million, sixty-four thousand, three hundred thirty-one".