7540666077 has 16 divisors (see below), whose sum is σ = 11494945280. Its totient is φ = 4307299632.

The previous prime is 7540666073. The next prime is 7540666079. The reversal of 7540666077 is 7706660457.

It is not a de Polignac number, because 7540666077 - 2² = 7540666073 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540666073) 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, 11683 + ... + 123360.

It is an arithmetic number, because the mean of its divisors is an integer number (718434080).

Almost surely, 2^7540666077 is an apocalyptic number.

It is an amenable number.

7540666077 is a deficient number, since it is larger than the sum of its proper divisors (3954279203).

7540666077 is a wasteful number, since it uses less digits than its factorization.

7540666077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137712.

The product of its (nonzero) digits is 1481760, while the sum is 48.

The square root of 7540666077 is about 86837.0086829343. The cubic root of 7540666077 is about 1960.9652746581.

The spelling of 7540666077 in words is "seven billion, five hundred forty million, six hundred sixty-six thousand, seventy-seven".