545651667 has 32 divisors (see below), whose sum is σ = 890472960. Its totient is φ = 327468960.

The previous prime is 545651651. The next prime is 545651681. The reversal of 545651667 is 766156545.

It is not a de Polignac number, because 545651667 - 2⁴ = 545651651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545651767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21673 + ... + 39509.

It is an arithmetic number, because the mean of its divisors is an integer number (27827280).

Almost surely, 2^545651667 is an apocalyptic number.

545651667 is a deficient number, since it is larger than the sum of its proper divisors (344821293).

545651667 is a wasteful number, since it uses less digits than its factorization.

545651667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17960 (or 17954 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 545651667 is about 23359.1880638005. The cubic root of 545651667 is about 817.1563541759.

The spelling of 545651667 in words is "five hundred forty-five million, six hundred fifty-one thousand, six hundred sixty-seven".