99353561616 has 45 divisors (see below), whose sum is σ = 278062567471. Its totient is φ = 33116593056.

The previous prime is 99353561609. The next prime is 99353561621. The reversal of 99353561616 is 61616535399.

The square root of 99353561616 is 315204.

It is a perfect power (a square), and thus also a powerful number.

99353561616 is a `hidden beast` number, since 9 + 9 + 3 + 5 + 3 + 5 + 616 + 16 = 666.

It is a super-2 number, since 2×99353561616² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3769315 + ... + 3795581.

Almost surely, 2^99353561616 is an apocalyptic number.

99353561616 is the 315204-th square number.

It is an amenable number.

99353561616 is an abundant number, since it is smaller than the sum of its proper divisors (178709005855).

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

99353561616 is an frugal number, since it uses more digits than its factorization.

99353561616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52548 (or 26272 counting only the distinct ones).

The product of its digits is 3936600, while the sum is 54.

It can be divided in two parts, 99353 and 561616, that added together give a square (660969 = 813²).

The spelling of 99353561616 in words is "ninety-nine billion, three hundred fifty-three million, five hundred sixty-one thousand, six hundred sixteen".