771146616 has 64 divisors (see below), whose sum is σ = 2034000000. Its totient is φ = 242960256.

The previous prime is 771146611. The next prime is 771146657. The reversal of 771146616 is 616641177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771146611) 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, 225850 + ... + 229238.

It is an arithmetic number, because the mean of its divisors is an integer number (31781250).

Almost surely, 2^771146616 is an apocalyptic number.

771146616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 771146616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017000000).

771146616 is an abundant number, since it is smaller than the sum of its proper divisors (1262853384).

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

771146616 is a wasteful number, since it uses less digits than its factorization.

771146616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3912 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 771146616 is about 27769.5267514591. The cubic root of 771146616 is about 917.0203759980.

The spelling of 771146616 in words is "seven hundred seventy-one million, one hundred forty-six thousand, six hundred sixteen".