61321656514 has 32 divisors (see below), whose sum is σ = 98042644800. Its totient is φ = 28682942400.

The previous prime is 61321656497. The next prime is 61321656527. The reversal of 61321656514 is 41565612316.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433524 + ... + 1475680.

It is an arithmetic number, because the mean of its divisors is an integer number (3063832650).

Almost surely, 2^61321656514 is an apocalyptic number.

61321656514 is a deficient number, since it is larger than the sum of its proper divisors (36720988286).

61321656514 is a wasteful number, since it uses less digits than its factorization.

61321656514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42658.

The product of its digits is 129600, while the sum is 40.

The spelling of 61321656514 in words is "sixty-one billion, three hundred twenty-one million, six hundred fifty-six thousand, five hundred fourteen".