12345620054 has 16 divisors (see below), whose sum is σ = 18829486800. Its totient is φ = 6069204960.

The previous prime is 12345619991. The next prime is 12345620081. The reversal of 12345620054 is 45002654321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12345620054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310532 + ... + 348024.

It is an arithmetic number, because the mean of its divisors is an integer number (1176842925).

Almost surely, 2^12345620054 is an apocalyptic number.

12345620054 is a deficient number, since it is larger than the sum of its proper divisors (6483866746).

12345620054 is a wasteful number, since it uses less digits than its factorization.

12345620054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40255.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 12345620054 in words is "twelve billion, three hundred forty-five million, six hundred twenty thousand, fifty-four".