61151684068 has 24 divisors (see below), whose sum is σ = 107198163072. Its totient is φ = 30523679424.

The previous prime is 61151684051. The next prime is 61151684107. The reversal of 61151684068 is 86048615116.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8576721 + ... + 8583847.

It is an arithmetic number, because the mean of its divisors is an integer number (4466590128).

Almost surely, 2^61151684068 is an apocalyptic number.

It is an amenable number.

61151684068 is a deficient number, since it is larger than the sum of its proper divisors (46046479004).

61151684068 is a wasteful number, since it uses less digits than its factorization.

61151684068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491 (or 10489 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 61151684068 in words is "sixty-one billion, one hundred fifty-one million, six hundred eighty-four thousand, sixty-eight".