99148429661 has 4 divisors (see below), whose sum is σ = 99149329500. Its totient is φ = 99147529824.

The previous prime is 99148429651. The next prime is 99148429669. The reversal of 99148429661 is 16692484199.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16692484199 = 59 ⋅282923461.

It can be written as a sum of positive squares in 2 ways, for example, as 35275976761 + 63872452900 = 187819^2 + 252730^2 .

It is a cyclic number.

It is not a de Polignac number, because 99148429661 - 2²² = 99144235357 is a prime.

It is a super-2 number, since 2×99148429661² (a number of 23 digits) contains 22 as substring.

It is a deceptive number, since it divides R_99148429660.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99148429661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99148429669) 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, 257096 + ... + 514193.

It is an arithmetic number, because the mean of its divisors is an integer number (24787332375).

It is a Poulet number, since it divides 2^99148429660-1.

Almost surely, 2^99148429661 is an apocalyptic number.

It is an amenable number.

99148429661 is a deficient number, since it is larger than the sum of its proper divisors (899839).

99148429661 is a wasteful number, since it uses less digits than its factorization.

99148429661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899838.

The product of its digits is 6718464, while the sum is 59.

The spelling of 99148429661 in words is "ninety-nine billion, one hundred forty-eight million, four hundred twenty-nine thousand, six hundred sixty-one".