45015156665 has 4 divisors (see below), whose sum is σ = 54018188004. Its totient is φ = 36012125328.

The previous prime is 45015156623. The next prime is 45015156673. The reversal of 45015156665 is 56665151054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23569311529 + 21445845136 = 153523^2 + 146444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45015156665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4501515662 + ... + 4501515671.

It is an arithmetic number, because the mean of its divisors is an integer number (13504547001).

Almost surely, 2^45015156665 is an apocalyptic number.

It is an amenable number.

45015156665 is a deficient number, since it is larger than the sum of its proper divisors (9003031339).

45015156665 is an equidigital number, since it uses as much as digits as its factorization.

45015156665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003031338.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 45015156665 in words is "forty-five billion, fifteen million, one hundred fifty-six thousand, six hundred sixty-five".