45521542145 has 16 divisors (see below), whose sum is σ = 56569689792. Its totient is φ = 35141749440.

The previous prime is 45521542139. The next prime is 45521542189. The reversal of 45521542145 is 54124512554.

It is not a de Polignac number, because 45521542145 - 2¹⁴ = 45521525761 is a prime.

It is a super-2 number, since 2×45521542145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45521542099 and 45521542108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257626 + ... + 1293315.

It is an arithmetic number, because the mean of its divisors is an integer number (3535605612).

Almost surely, 2^45521542145 is an apocalyptic number.

It is an amenable number.

45521542145 is a deficient number, since it is larger than the sum of its proper divisors (11048147647).

45521542145 is a wasteful number, since it uses less digits than its factorization.

45521542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551072.

The product of its digits is 160000, while the sum is 38.

The spelling of 45521542145 in words is "forty-five billion, five hundred twenty-one million, five hundred forty-two thousand, one hundred forty-five".