66513102488 has 16 divisors (see below), whose sum is σ = 142528076880. Its totient is φ = 28505615328.

The previous prime is 66513102479. The next prime is 66513102493. The reversal of 66513102488 is 88420131566.

It is a congruent number.

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, 593866931 + ... + 593867042.

It is an arithmetic number, because the mean of its divisors is an integer number (8908004805).

Almost surely, 2^66513102488 is an apocalyptic number.

It is an amenable number.

66513102488 is an abundant number, since it is smaller than the sum of its proper divisors (76014974392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66513102488 is a wasteful number, since it uses less digits than its factorization.

66513102488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187733986 (or 1187733982 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 66513102488 in words is "sixty-six billion, five hundred thirteen million, one hundred two thousand, four hundred eighty-eight".