545666415 has 32 divisors (see below), whose sum is σ = 1050309120. Its totient is φ = 236317824.

The previous prime is 545666399. The next prime is 545666423. The reversal of 545666415 is 514666545.

It is not a de Polignac number, because 545666415 - 2⁴ = 545666399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134764 + ... + 138753.

It is an arithmetic number, because the mean of its divisors is an integer number (32822160).

Almost surely, 2^545666415 is an apocalyptic number.

545666415 is a deficient number, since it is larger than the sum of its proper divisors (504642705).

545666415 is a wasteful number, since it uses less digits than its factorization.

545666415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273551.

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

The square root of 545666415 is about 23359.5037404479. The cubic root of 545666415 is about 817.1637162068.

The spelling of 545666415 in words is "five hundred forty-five million, six hundred sixty-six thousand, four hundred fifteen".