183990533401 has 4 divisors (see below), whose sum is σ = 194813505972. Its totient is φ = 173167560832.

The previous prime is 183990533383. The next prime is 183990533443. The reversal of 183990533401 is 104335099381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104335099381 = 463 ⋅225345787.

It can be written as a sum of positive squares in 2 ways, for example, as 106130002176 + 77860531225 = 325776^2 + 279035^2 .

It is a cyclic number.

It is not a de Polignac number, because 183990533401 - 2⁵ = 183990533369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (183990533201) 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, 5411486260 + ... + 5411486293.

It is an arithmetic number, because the mean of its divisors is an integer number (48703376493).

Almost surely, 2^183990533401 is an apocalyptic number.

It is an amenable number.

183990533401 is a deficient number, since it is larger than the sum of its proper divisors (10822972571).

183990533401 is a wasteful number, since it uses less digits than its factorization.

183990533401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822972570.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 183990533401 in words is "one hundred eighty-three billion, nine hundred ninety million, five hundred thirty-three thousand, four hundred one".