45145945556 has 12 divisors (see below), whose sum is σ = 79010071392. Its totient is φ = 22571639448.

The previous prime is 45145945519. The next prime is 45145945631. The reversal of 45145945556 is 65554954154.

It is a happy number.

It is a super-2 number, since 2×45145945556² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45145945498 and 45145945507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255110 + ... + 394173.

It is an arithmetic number, because the mean of its divisors is an integer number (6584172616).

Almost surely, 2^45145945556 is an apocalyptic number.

It is an amenable number.

45145945556 is a deficient number, since it is larger than the sum of its proper divisors (33864125836).

45145945556 is a wasteful number, since it uses less digits than its factorization.

45145945556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666670 (or 666668 counting only the distinct ones).

The product of its digits is 10800000, while the sum is 53.

The spelling of 45145945556 in words is "forty-five billion, one hundred forty-five million, nine hundred forty-five thousand, five hundred fifty-six".