45666021533 has 4 divisors (see below), whose sum is σ = 49817478048. Its totient is φ = 41514565020.

The previous prime is 45666021529. The next prime is 45666021587. The reversal of 45666021533 is 33512066654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45666021533 - 2² = 45666021529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45666021733) 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, 2075728241 + ... + 2075728262.

It is an arithmetic number, because the mean of its divisors is an integer number (12454369512).

Almost surely, 2^45666021533 is an apocalyptic number.

It is an amenable number.

45666021533 is a deficient number, since it is larger than the sum of its proper divisors (4151456515).

45666021533 is a wasteful number, since it uses less digits than its factorization.

45666021533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151456514.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 45666021533 in words is "forty-five billion, six hundred sixty-six million, twenty-one thousand, five hundred thirty-three".