66734373404772 has 96 divisors (see below), whose sum is σ = 177052841602560. Its totient is φ = 21725728446240.

The previous prime is 66734373404681. The next prime is 66734373404893. The reversal of 66734373404772 is 27740437343766.

66734373404772 is a `hidden beast` number, since 6 + 67 + 3 + 437 + 34 + 0 + 47 + 72 = 666.

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, 57995743 + ... + 59135225.

It is an arithmetic number, because the mean of its divisors is an integer number (1844300433360).

Almost surely, 2^{66734373404772} is an apocalyptic number.

It is an amenable number.

66734373404772 is an abundant number, since it is smaller than the sum of its proper divisors (110318468197788).

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

66734373404772 is a wasteful number, since it uses less digits than its factorization.

66734373404772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152150 (or 1152142 counting only the distinct ones).

The product of its (nonzero) digits is 298722816, while the sum is 63.

The spelling of 66734373404772 in words is "sixty-six trillion, seven hundred thirty-four billion, three hundred seventy-three million, four hundred four thousand, seven hundred seventy-two".