545221320151 has 8 divisors (see below), whose sum is σ = 563007158784. Its totient is φ = 527447859960.

The previous prime is 545221320131. The next prime is 545221320181. The reversal of 545221320151 is 151023122545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545221320151 - 2¹⁵ = 545221287383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545221320131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005041 + ... + 3181306.

It is an arithmetic number, because the mean of its divisors is an integer number (70375894848).

Almost surely, 2^545221320151 is an apocalyptic number.

545221320151 is a deficient number, since it is larger than the sum of its proper divisors (17785838633).

545221320151 is a wasteful number, since it uses less digits than its factorization.

545221320151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6189221.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 545221320151 its reverse (151023122545), we get a palindrome (696244442696).

The spelling of 545221320151 in words is "five hundred forty-five billion, two hundred twenty-one million, three hundred twenty thousand, one hundred fifty-one".