545263640601 has 4 divisors (see below), whose sum is σ = 727018187472. Its totient is φ = 363509093732.

The previous prime is 545263640557. The next prime is 545263640633. The reversal of 545263640601 is 106046362545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545263640601 - 2¹⁹ = 545263116313 is a prime.

It is a super-2 number, since 2×545263640601² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545263640671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90877273431 + ... + 90877273436.

It is an arithmetic number, because the mean of its divisors is an integer number (181754546868).

Almost surely, 2^545263640601 is an apocalyptic number.

It is an amenable number.

545263640601 is a deficient number, since it is larger than the sum of its proper divisors (181754546871).

545263640601 is a wasteful number, since it uses less digits than its factorization.

545263640601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181754546870.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 545263640601 in words is "five hundred forty-five billion, two hundred sixty-three million, six hundred forty thousand, six hundred one".