116221020551 has 2 divisors, whose sum is σ = 116221020552. Its totient is φ = 116221020550.

The previous prime is 116221020521. The next prime is 116221020563. The reversal of 116221020551 is 155020122611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116221020551 - 2¹⁴ = 116221004167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116221020551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116221020521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58110510275 + 58110510276.

It is an arithmetic number, because the mean of its divisors is an integer number (58110510276).

Almost surely, 2^116221020551 is an apocalyptic number.

116221020551 is a deficient number, since it is larger than the sum of its proper divisors (1).

116221020551 is an equidigital number, since it uses as much as digits as its factorization.

116221020551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 116221020551 in words is "one hundred sixteen billion, two hundred twenty-one million, twenty thousand, five hundred fifty-one".