66425416011145 has 16 divisors (see below), whose sum is σ = 79780259399760. Its totient is φ = 53093831341824.

The previous prime is 66425416011109. The next prime is 66425416011151. The reversal of 66425416011145 is 54111061452466.

It can be written as a sum of positive squares in 8 ways, for example, as 6200040240144 + 60225375771001 = 2489988^2 + 7760501^2 .

It is a cyclic number.

It is not a de Polignac number, because 66425416011145 - 2⁹ = 66425416010633 is a prime.

It is a super-2 number, since 2×66425416011145² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66425416011095 and 66425416011104.

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, 102254707 + ... + 102902263.

It is an arithmetic number, because the mean of its divisors is an integer number (4986266212485).

Almost surely, 2^{66425416011145} is an apocalyptic number.

It is an amenable number.

66425416011145 is a deficient number, since it is larger than the sum of its proper divisors (13354843388615).

66425416011145 is a wasteful number, since it uses less digits than its factorization.

66425416011145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665484.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 66425416011145 in words is "sixty-six trillion, four hundred twenty-five billion, four hundred sixteen million, eleven thousand, one hundred forty-five".