61124611651 has 2 divisors, whose sum is σ = 61124611652. Its totient is φ = 61124611650.

The previous prime is 61124611649. The next prime is 61124611661. The reversal of 61124611651 is 15611642116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61124611651 - 2¹ = 61124611649 is a prime.

Together with 61124611649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61124611601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30562305825 + 30562305826.

It is an arithmetic number, because the mean of its divisors is an integer number (30562305826).

Almost surely, 2^61124611651 is an apocalyptic number.

61124611651 is a deficient number, since it is larger than the sum of its proper divisors (1).

61124611651 is an equidigital number, since it uses as much as digits as its factorization.

61124611651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 34.

The spelling of 61124611651 in words is "sixty-one billion, one hundred twenty-four million, six hundred eleven thousand, six hundred fifty-one".