61150118399 has 2 divisors, whose sum is σ = 61150118400. Its totient is φ = 61150118398.

The previous prime is 61150118357. The next prime is 61150118401. The reversal of 61150118399 is 99381105116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61150118399 - 2²⁸ = 60881682943 is a prime.

Together with 61150118401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61150118899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30575059199 + 30575059200.

It is an arithmetic number, because the mean of its divisors is an integer number (30575059200).

Almost surely, 2^61150118399 is an apocalyptic number.

61150118399 is a deficient number, since it is larger than the sum of its proper divisors (1).

61150118399 is an equidigital number, since it uses as much as digits as its factorization.

61150118399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 61150118399 in words is "sixty-one billion, one hundred fifty million, one hundred eighteen thousand, three hundred ninety-nine".