545421500405 has 16 divisors (see below), whose sum is σ = 677145744000. Its totient is φ = 421247050560.

The previous prime is 545421500389. The next prime is 545421500411. The reversal of 545421500405 is 504005124545.

It is not a de Polignac number, because 545421500405 - 2⁴ = 545421500389 is a prime.

It is a super-2 number, since 2×545421500405² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230896 + ... + 1614294.

It is an arithmetic number, because the mean of its divisors is an integer number (42321609000).

Almost surely, 2^545421500405 is an apocalyptic number.

It is an amenable number.

545421500405 is a deficient number, since it is larger than the sum of its proper divisors (131724243595).

545421500405 is a wasteful number, since it uses less digits than its factorization.

545421500405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393244.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 545421500405 in words is "five hundred forty-five billion, four hundred twenty-one million, five hundred thousand, four hundred five".