51400466666 has 8 divisors (see below), whose sum is σ = 77174909760. Its totient is φ = 25675496748.

The previous prime is 51400466641. The next prime is 51400466669. The reversal of 51400466666 is 66666400415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51400466669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12365696 + ... + 12369851.

It is an arithmetic number, because the mean of its divisors is an integer number (9646863720).

Almost surely, 2^51400466666 is an apocalyptic number.

51400466666 is a deficient number, since it is larger than the sum of its proper divisors (25774443094).

51400466666 is a wasteful number, since it uses less digits than its factorization.

51400466666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24736588.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 51400466666 in words is "fifty-one billion, four hundred million, four hundred sixty-six thousand, six hundred sixty-six".