1506664545 has 16 divisors (see below), whose sum is σ = 2418275520. Its totient is φ = 801017024.

The previous prime is 1506664541. The next prime is 1506664547. The reversal of 1506664545 is 5454666051.

It is a cyclic number.

It is not a de Polignac number, because 1506664545 - 2² = 1506664541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1506664497 and 1506664506.

It is not an unprimeable number, because it can be changed into a prime (1506664541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153675 + ... + 163184.

It is an arithmetic number, because the mean of its divisors is an integer number (151142220).

Almost surely, 2^1506664545 is an apocalyptic number.

1506664545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1506664545 is a deficient number, since it is larger than the sum of its proper divisors (911610975).

1506664545 is a wasteful number, since it uses less digits than its factorization.

1506664545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317184.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 1506664545 is about 38815.7770114164. Note that the first 3 decimals coincide. The cubic root of 1506664545 is about 1146.4070711675.

The spelling of 1506664545 in words is "one billion, five hundred six million, six hundred sixty-four thousand, five hundred forty-five".