665151045 has 24 divisors (see below), whose sum is σ = 1152408096. Its totient is φ = 327457728.

The previous prime is 665151043. The next prime is 665151079. The reversal of 665151045 is 540151566.

665151045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 665151045 - 2¹ = 665151043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665150997 and 665151015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665151041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128659 + ... + 133728.

It is an arithmetic number, because the mean of its divisors is an integer number (48017004).

Almost surely, 2^665151045 is an apocalyptic number.

665151045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

665151045 is a deficient number, since it is larger than the sum of its proper divisors (487257051).

665151045 is a wasteful number, since it uses less digits than its factorization.

665151045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262421 (or 262408 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 665151045 is about 25790.5223871096. The cubic root of 665151045 is about 872.9179536843.

The spelling of 665151045 in words is "six hundred sixty-five million, one hundred fifty-one thousand, forty-five".