545158656 has 120 divisors (see below), whose sum is σ = 1798237584. Its totient is φ = 155750400.

The previous prime is 545158639. The next prime is 545158681. The reversal of 545158656 is 656851545.

545158656 is a `hidden beast` number, since 5 + 4 + 515 + 86 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23806 + ... + 40706.

Almost surely, 2^545158656 is an apocalyptic number.

545158656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545158656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899118792).

545158656 is an abundant number, since it is smaller than the sum of its proper divisors (1253078928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545158656 is a wasteful number, since it uses less digits than its factorization.

545158656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16932 (or 16913 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 545158656 is about 23348.6328507688. The cubic root of 545158656 is about 816.9101724141.

It can be divided in two parts, 545 and 158656, that added together give a square (159201 = 399²).

The spelling of 545158656 in words is "five hundred forty-five million, one hundred fifty-eight thousand, six hundred fifty-six".