45012543566 has 16 divisors (see below), whose sum is σ = 68709867408. Its totient is φ = 22112251200.

The previous prime is 45012543551. The next prime is 45012543619. The reversal of 45012543566 is 66534521054.

It is a happy number.

It is a super-2 number, since 2×45012543566² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719015 + ... + 779106.

It is an arithmetic number, because the mean of its divisors is an integer number (4294366713).

Almost surely, 2^45012543566 is an apocalyptic number.

45012543566 is a deficient number, since it is larger than the sum of its proper divisors (23697323842).

45012543566 is a wasteful number, since it uses less digits than its factorization.

45012543566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498387.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 45012543566 in words is "forty-five billion, twelve million, five hundred forty-three thousand, five hundred sixty-six".