45728703666 has 24 divisors (see below), whose sum is σ = 100758162960. Its totient is φ = 14984546616.

The previous prime is 45728703659. The next prime is 45728703667. The reversal of 45728703666 is 66630782754.

It is a super-2 number, since 2×45728703666² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45728703667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21528460 + ... + 21530583.

It is an arithmetic number, because the mean of its divisors is an integer number (4198256790).

Almost surely, 2^45728703666 is an apocalyptic number.

45728703666 is an abundant number, since it is smaller than the sum of its proper divisors (55029459294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45728703666 is a wasteful number, since it uses less digits than its factorization.

45728703666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43059110 (or 43059107 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 45728703666 in words is "forty-five billion, seven hundred twenty-eight million, seven hundred three thousand, six hundred sixty-six".