711551616 has 64 divisors (see below), whose sum is σ = 1934058720. Its totient is φ = 231662592.

The previous prime is 711551611. The next prime is 711551629. The reversal of 711551616 is 616155117.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×711551616² = 1012611404464422912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (711551611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5035 + ... + 38058.

Almost surely, 2^711551616 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 711551616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967029360).

711551616 is an abundant number, since it is smaller than the sum of its proper divisors (1222507104).

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

711551616 is a wasteful number, since it uses less digits than its factorization.

711551616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43153 (or 43141 counting only the distinct ones).

The product of its digits is 6300, while the sum is 33.

The square root of 711551616 is about 26674.9248546271. The cubic root of 711551616 is about 892.7615340373.

It can be divided in two parts, 71155 and 1616, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 711551616 in words is "seven hundred eleven million, five hundred fifty-one thousand, six hundred sixteen".