12764205720145 has 16 divisors (see below), whose sum is σ = 16709577716160. Its totient is φ = 9283018680000.

The previous prime is 12764205720073. The next prime is 12764205720239. The reversal of 12764205720145 is 54102750246721.

It is a happy number.

It is not a de Polignac number, because 12764205720145 - 2²³ = 12764197331537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12764205720095 and 12764205720104.

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, 19771111 + ... + 20406499.

It is an arithmetic number, because the mean of its divisors is an integer number (1044348607260).

Almost surely, 2^{12764205720145} is an apocalyptic number.

It is an amenable number.

12764205720145 is a deficient number, since it is larger than the sum of its proper divisors (3945371996015).

12764205720145 is a wasteful number, since it uses less digits than its factorization.

12764205720145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000656.

The product of its (nonzero) digits is 940800, while the sum is 46.

Adding to 12764205720145 its reverse (54102750246721), we get a palindrome (66866955966866).

The spelling of 12764205720145 in words is "twelve trillion, seven hundred sixty-four billion, two hundred five million, seven hundred twenty thousand, one hundred forty-five".