6667407340811 has 16 divisors (see below), whose sum is σ = 7887929169600. Its totient is φ = 5514158283648.

The previous prime is 6667407340771. The next prime is 6667407340823. The reversal of 6667407340811 is 1180437047666.

It is a happy number.

It is not a de Polignac number, because 6667407340811 - 2⁶ = 6667407340747 is a prime.

It is a super-2 number, since 2×6667407340811² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6667407340211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10696376 + ... + 11302533.

It is an arithmetic number, because the mean of its divisors is an integer number (492995573100).

Almost surely, 2^{6667407340811} is an apocalyptic number.

6667407340811 is a deficient number, since it is larger than the sum of its proper divisors (1220521828789).

6667407340811 is a wasteful number, since it uses less digits than its factorization.

6667407340811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22000438.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 6667407340811 in words is "six trillion, six hundred sixty-seven billion, four hundred seven million, three hundred forty thousand, eight hundred eleven".