51496387066 has 8 divisors (see below), whose sum is σ = 77263474464. Its totient is φ = 25741895580.

The previous prime is 51496387051. The next prime is 51496387093. The reversal of 51496387066 is 66078369415.

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

It is a junction number, because it is equal to n+sod(n) for n = 51496386998 and 51496387016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138750 + ... + 3155113.

It is an arithmetic number, because the mean of its divisors is an integer number (9657934308).

Almost surely, 2^51496387066 is an apocalyptic number.

51496387066 is a deficient number, since it is larger than the sum of its proper divisors (25767087398).

51496387066 is a wasteful number, since it uses less digits than its factorization.

51496387066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6297956.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 51496387066 in words is "fifty-one billion, four hundred ninety-six million, three hundred eighty-seven thousand, sixty-six".