625632142166545 has 8 divisors (see below), whose sum is σ = 750760430111424. Its totient is φ = 500504474058864.

The previous prime is 625632142166539. The next prime is 625632142166561. The reversal of 625632142166545 is 545661241236526.

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 625632142166545 - 2¹⁹ = 625632141642257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625632142166545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152735829 + ... + 156778498.

It is an arithmetic number, because the mean of its divisors is an integer number (93845053763928).

Almost surely, 2^{625632142166545} is an apocalyptic number.

It is an amenable number.

625632142166545 is a deficient number, since it is larger than the sum of its proper divisors (125128287944879).

625632142166545 is a wasteful number, since it uses less digits than its factorization.

625632142166545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309918599.

The product of its digits is 62208000, while the sum is 58.

The spelling of 625632142166545 in words is "six hundred twenty-five trillion, six hundred thirty-two billion, one hundred forty-two million, one hundred sixty-six thousand, five hundred forty-five".