76145513554661 has 2 divisors, whose sum is σ = 76145513554662. Its totient is φ = 76145513554660.

The previous prime is 76145513554577. The next prime is 76145513554681. The reversal of 76145513554661 is 16645531554167.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40893863518561 + 35251650036100 = 6394831^2 + 5937310^2 .

It is a cyclic number.

It is not a de Polignac number, because 76145513554661 - 2³⁴ = 76128333685477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76145513554661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76145513554681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38072756777330 + 38072756777331.

It is an arithmetic number, because the mean of its divisors is an integer number (38072756777331).

Almost surely, 2^{76145513554661} is an apocalyptic number.

It is an amenable number.

76145513554661 is a deficient number, since it is larger than the sum of its proper divisors (1).

76145513554661 is an equidigital number, since it uses as much as digits as its factorization.

76145513554661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360000, while the sum is 59.

The spelling of 76145513554661 in words is "seventy-six trillion, one hundred forty-five billion, five hundred thirteen million, five hundred fifty-four thousand, six hundred sixty-one".