45534155661 has 24 divisors (see below), whose sum is σ = 68823296256. Its totient is φ = 28974438720.

The previous prime is 45534155659. The next prime is 45534155669. The reversal of 45534155661 is 16655143554.

45534155661 is a `hidden beast` number, since 4 + 5 + 5 + 34 + 1 + 556 + 61 = 666.

It is not a de Polignac number, because 45534155661 - 2¹ = 45534155659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45534155669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1097475 + ... + 1138208.

It is an arithmetic number, because the mean of its divisors is an integer number (2867637344).

Almost surely, 2^45534155661 is an apocalyptic number.

It is an amenable number.

45534155661 is a deficient number, since it is larger than the sum of its proper divisors (23289140595).

45534155661 is a wasteful number, since it uses less digits than its factorization.

45534155661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235793 (or 2235790 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 45534155661 in words is "forty-five billion, five hundred thirty-four million, one hundred fifty-five thousand, six hundred sixty-one".