536661478 has 4 divisors (see below), whose sum is σ = 804992220. Its totient is φ = 268330738.

The previous prime is 536661473. The next prime is 536661497. The reversal of 536661478 is 874166635.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536661473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134165368 + ... + 134165371.

It is an arithmetic number, because the mean of its divisors is an integer number (201248055).

Almost surely, 2^536661478 is an apocalyptic number.

536661478 is a deficient number, since it is larger than the sum of its proper divisors (268330742).

536661478 is a wasteful number, since it uses less digits than its factorization.

536661478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268330741.

The product of its digits is 725760, while the sum is 46.

The square root of 536661478 is about 23165.9551497451. The cubic root of 536661478 is about 812.6436400248.

The spelling of 536661478 in words is "five hundred thirty-six million, six hundred sixty-one thousand, four hundred seventy-eight".