99655652377 has 4 divisors (see below), whose sum is σ = 100383066036. Its totient is φ = 98928238720.

The previous prime is 99655652297. The next prime is 99655652381. The reversal of 99655652377 is 77325655699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77325655699 = 47 ⋅1645226717.

It can be written as a sum of positive squares in 2 ways, for example, as 35381233801 + 64274418576 = 188099^2 + 253524^2 .

It is a cyclic number.

It is not a de Polignac number, because 99655652377 - 2¹¹ = 99655650329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99655655377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363706624 + ... + 363706897.

It is an arithmetic number, because the mean of its divisors is an integer number (25095766509).

Almost surely, 2^99655652377 is an apocalyptic number.

It is an amenable number.

99655652377 is a deficient number, since it is larger than the sum of its proper divisors (727413659).

99655652377 is a wasteful number, since it uses less digits than its factorization.

99655652377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727413658.

The product of its digits is 107163000, while the sum is 64.

The spelling of 99655652377 in words is "ninety-nine billion, six hundred fifty-five million, six hundred fifty-two thousand, three hundred seventy-seven".