616171264 has 18 divisors (see below), whose sum is σ = 1229936120. Its totient is φ = 308085504.

The previous prime is 616171261. The next prime is 616171267. The reversal of 616171264 is 462171616.

It is an interprime number because it is at equal distance from previous prime (616171261) and next prime (616171267).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616171261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1203204 + ... + 1203715.

Almost surely, 2^616171264 is an apocalyptic number.

616171264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

616171264 is a deficient number, since it is larger than the sum of its proper divisors (613764856).

616171264 is an equidigital number, since it uses as much as digits as its factorization.

616171264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406935 (or 2406921 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 616171264 is about 24822.7972638057. The cubic root of 616171264 is about 850.9430198298.

The spelling of 616171264 in words is "six hundred sixteen million, one hundred seventy-one thousand, two hundred sixty-four".