66031189497270 has 64 divisors (see below), whose sum is σ = 183738962096640. Its totient is φ = 16842738189024.

The previous prime is 66031189497269. The next prime is 66031189497353. The reversal of 66031189497270 is 7279498113066.

66031189497270 is a `hidden beast` number, since 6 + 6 + 0 + 3 + 118 + 9 + 497 + 27 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 66031189497198 and 66031189497207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5316514684 + ... + 5316527103.

It is an arithmetic number, because the mean of its divisors is an integer number (2870921282760).

Almost surely, 2^{66031189497270} is an apocalyptic number.

66031189497270 is an abundant number, since it is smaller than the sum of its proper divisors (117707772599370).

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

66031189497270 is a wasteful number, since it uses less digits than its factorization.

66031189497270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10633041826 (or 10633041820 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 66031189497270 in words is "sixty-six trillion, thirty-one billion, one hundred eighty-nine million, four hundred ninety-seven thousand, two hundred seventy".