541020666 has 64 divisors (see below), whose sum is σ = 1149313536. Its totient is φ = 169574400.

The previous prime is 541020653. The next prime is 541020671. The reversal of 541020666 is 666020145.

It is a super-2 number, since 2×541020666² = 585406722078167112, which contains 22 as substring.

It is a Curzon 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, 843706 + ... + 844346.

It is an arithmetic number, because the mean of its divisors is an integer number (17958024).

Almost surely, 2^541020666 is an apocalyptic number.

541020666 is an abundant number, since it is smaller than the sum of its proper divisors (608292870).

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

541020666 is a wasteful number, since it uses less digits than its factorization.

541020666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 541020666 is about 23259.8509453522. The cubic root of 541020666 is about 814.8380201757.

The spelling of 541020666 in words is "five hundred forty-one million, twenty thousand, six hundred sixty-six".