541065421891998 has 80 divisors (see below), whose sum is σ = 1252626879394176. Its totient is φ = 174450535434000.

The previous prime is 541065421891963. The next prime is 541065421892087. The reversal of 541065421891998 is 899198124560145.

It is a happy number.

541065421891998 is a `hidden beast` number, since 5 + 4 + 1 + 0 + 6 + 5 + 421 + 8 + 9 + 199 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 376332628 + ... + 377767623.

Almost surely, 2^{541065421891998} is an apocalyptic number.

541065421891998 is an abundant number, since it is smaller than the sum of its proper divisors (711561457502178).

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

541065421891998 is a wasteful number, since it uses less digits than its factorization.

541065421891998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754100411 (or 754100402 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 72.

The spelling of 541065421891998 in words is "five hundred forty-one trillion, sixty-five billion, four hundred twenty-one million, eight hundred ninety-one thousand, nine hundred ninety-eight".